A private investigator (often abbreviated to PI and informally called a private eye), a private detective, or inquiry agent is a person who can be hired by individuals or groups to undertake investigatory law services. Private investigators often work for
attorneys in civil and criminal cases.
History
In 1833,
Eugène François Vidocq
Eugène-François Vidocq (; 24 July 1775 – 11 May 1857) was a French criminal turned criminalist, whose life story inspired several writers, including Victor Hugo, Edgar Allan Poe and Honoré de Balzac. The former criminal became the founder a ...
, a French
soldier
A soldier is a person who is a member of an army. A soldier can be a conscripted or volunteer enlisted person, a non-commissioned officer, or an officer.
Etymology
The word ''soldier'' derives from the Middle English word , from Old French ...
, criminal, and
privateer
A privateer is a private person or ship that engages in maritime warfare under a commission of war. Since robbery under arms was a common aspect of seaborne trade, until the early 19th century all merchant ships carried arms. A sovereign or deleg ...
, founded the first known private detective agency, "Le Bureau des Renseignements Universels pour le commerce et l'Industrie" ("The Office of Universal Information For Commerce and Industry") and hired ex-convicts. Much of what private investigators did in the early days was to act as the police in matters for which their clients felt the police were not equipped or willing to do. Official law enforcement tried many times to shut it down. In 1842, police arrested him in suspicion of
unlawful imprisonment
False imprisonment or unlawful imprisonment occurs when a person intentionally restricts another person’s movement within any area without legal authority, justification, or the restrained person's permission. Actual physical restraint is ...
and taking money on false pretences after he had solved an
embezzlement
Embezzlement is a crime that consists of withholding assets for the purpose of conversion of such assets, by one or more persons to whom the assets were entrusted, either to be held or to be used for specific purposes. Embezzlement is a type ...
case. Vidocq later suspected that it had been a set-up. He was sentenced to five years and fined 3,000
franc
The franc is any of various units of currency. One franc is typically divided into 100 centimes. The name is said to derive from the Latin inscription ''francorum rex'' (Style of the French sovereign, King of the Franks) used on early France, ...
s, but the Court of Appeals released him. Vidocq is credited with having introduced record-keeping,
criminology
Criminology (from Latin , "accusation", and Ancient Greek , ''-logia'', from λόγος ''logos'' meaning: "word, reason") is the study of crime and deviant behaviour. Criminology is an interdisciplinary field in both the behavioural and so ...
, and
ballistics
Ballistics is the field of mechanics concerned with the launching, flight behaviour and impact effects of projectiles, especially ranged weapon munitions such as bullets, unguided bombs, rockets or the like; the science or art of designing and a ...
to criminal investigation. He made the first plaster casts of shoe impressions. He created indelible
ink
Ink is a gel, sol, or solution that contains at least one colorant, such as a dye or pigment, and is used to color a surface to produce an image, text, or design. Ink is used for drawing or writing with a pen, brush, reed pen, or quill. Thicker ...
and unalterable bond paper with his printing company. His form of
anthropometrics
Anthropometry () refers to the measurement of the human individual. An early tool of physical anthropology, it has been used for identification, for the purposes of understanding human physical variation, in paleoanthropology and in various at ...
is still partially used by French police. He is also credited for philanthropic pursuits – he claimed he never informed on anyone who had stolen for real need.
In the United Kingdom,
Charles Frederick Field set up an enquiry office upon his retirement from the
Metropolitan Police
The Metropolitan Police Service (MPS), formerly and still commonly known as the Metropolitan Police (and informally as the Met Police, the Met, Scotland Yard, or the Yard), is the territorial police force responsible for law enforcement and ...
in 1852. Field became a friend of
Charles Dickens
Charles John Huffam Dickens (; 7 February 1812 – 9 June 1870) was an English writer and social critic. He created some of the world's best-known fictional characters and is regarded by many as the greatest novelist of the Victorian e ...
, and the latter wrote articles about him. In 1862, one of his employees, the Hungarian
Ignatius Paul Pollaky, left him and set up a rival agency. Although little-remembered today, Pollaky's fame at the time was such that he was mentioned in various books of the 1870s and immortalized as "Paddington" Pollaky for his "keen penetration" in the 1881 comic opera,
''Patience''.
In the United States,
Allan Pinkerton
Allan J. Pinkerton (August 25, 1819 – July 1, 1884) was a Scottish cooper, abolitionist, detective, and spy, best known for creating the Pinkerton National Detective Agency in the United States and his claim to have foiled a plot in 1861 to a ...
established the
Pinkerton National Detective Agency
Pinkerton is a private security guard and detective agency established around 1850 in the United States by Scottish-born cooper Allan Pinkerton and Chicago attorney Edward Rucker as the North-Western Police Agency, which later became Pinkerton ...
– a private detective agency – in 1850. Pinkerton became famous when he foiled
a plot to
assassinate
Assassination is the murder of a prominent or important person, such as a head of state, head of government, politician, world leader, member of a royal family or CEO. The murder of a celebrity, activist, or artist, though they may not have a ...
then President-elect
Abraham Lincoln
Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American lawyer, politician, and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865. Lincoln led the nation thro ...
in 1861. Pinkerton's agents performed services which ranged from undercover investigations and detection of crimes, to plant protection and armed security. At the height of its existence, the number of Pinkerton National Detective Agency active agents and reserves rivaled the number of active soldiers and reserves in the
United States Army
The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...
.
Allan Pinkerton hired
Kate Warne
Kate Warne (1833 – January 28, 1868) was an American law enforcement officer known as the first female detective, in 1856, in the Pinkerton Detective Agency and the United States.
Pre–Civil War Early detective work: 1856–1861
Very li ...
in 1856 as a private detective, making her the first female private detective in America.
A larger role for this new private investigative industry was to assist companies in labor disputes. Some early private investigators provided armed guards to act as a private militia.
During the union unrest in the US in the late 19th century, industrialists would hire Pinkerton agents as undercover operatives to infiltrate and disrupt union activity or serve as armed guards for factories. In the aftermath of the
Homestead Riot of 1892, several states passed so-called "anti-Pinkerton" laws restricting the importation of private security guards during union strikes. The federal
Anti-Pinkerton Act
The Anti-Pinkerton Act was a law passed by the U.S. Congress in 1893 to limit the federal government's ability to hire private investigators or mercenaries.
The Anti-Pinkerton Act is contained withi5 U.S.C. 3108and purports to specifically res ...
of 1893 continues to prohibit an "individual employed by the Pinkerton Detective Agency, or similar organization" from being employed by "the Government of the United States or the government of the District of Columbia."
Pinkerton agents were also hired to track western outlaws
Jesse James
Jesse Woodson James (September 5, 1847April 3, 1882) was an American outlaw, bank and train robber, guerrilla and leader of the James–Younger Gang. Raised in the " Little Dixie" area of Western Missouri, James and his family maintained stro ...
, the
Reno brothers
The Reno Gang, also known as the Reno Brothers Gang and The Jackson Thieves, were a group of criminals that operated in the Midwestern United States during and just after the American Civil War. Though short-lived, the gang carried out the firs ...
, and the
Wild Bunch
The Wild Bunch, also known as the Doolin–Dalton Gang, or the Oklahombres, were a gang of American outlaws based in the Indian Territory in the late 19th and early 20th centuries. They were active in Kansas, Missouri, Arkansas, and Oklahoma Terr ...
, including
Butch Cassidy and the
Sundance Kid.
Employment
Many private detectives/investigators with special academic and practical experience often work with defense
attorneys on
capital punishment
Capital punishment, also known as the death penalty, is the state-sanctioned practice of deliberately killing a person as a punishment for an actual or supposed crime, usually following an authorized, rule-governed process to conclude that t ...
and other
criminal defense
In the field of criminal law, there are a variety of conditions that will tend to negate elements of a crime (particularly the ''intent'' element), known as defenses. The label may be apt in jurisdictions where the ''accused'' may be assigned some ...
cases. Others are
insurance investigator
An insurance investigator examines insurance claims that are suspicious or otherwise in doubt. Investigators in this field have differing specialties and backgrounds. Some insurance companies have their own in-house investigation teams while other ...
s who investigate suspicious claims. Before the advent of
no-fault divorce
In a no-fault divorce the dissolution of a marriage does not require a showing of wrongdoing by either party. Laws providing for no-fault divorce allow a family court to grant a divorce in response to a petition by either party of the marriage w ...
, many private investigators sought evidence of adultery or other conduct within marriage to establish grounds for a divorce. Despite the lack of legal necessity for such evidence in many jurisdictions, according to press reports, collecting evidence of spouses' and partners' adultery or other "bad behaviour" is still one of their most profitable undertakings, as the stakes being fought over now are child custody, alimony, or marital property disputes.
Private investigators can also perform
due diligence
Due diligence is the investigation or exercise of care that a reasonable business or person is normally expected to take before entering into an agreement or contract with another party or an act with a certain standard of care.
It can be a l ...
for an investor considering investing with an investment group, fund manager, or other high-risk business or investment venture. This could help the prospective investor avoid being the victim of fraud. A licensed and experienced investigator could reveal the investment is risky and/or the investor has a suspicious background. This is called investigative due diligence, and is becoming more prevalent in the 21st century with the public reports of large-scale
Ponzi scheme
A Ponzi scheme (, ) is a form of fraud that lures investors and pays profits to earlier investors with funds from more recent investors. Named after Italian businessman Charles Ponzi, the scheme leads victims to believe that profits are comin ...
s and other fraudulent investment vehicles.
There are also cases of
corrupt
Corruption is a form of dishonesty or a criminal offense which is undertaken by a person or an organization which is entrusted in a position of authority, in order to acquire illicit benefits or abuse power for one's personal gain. Corruption m ...
private detectives who, at times, have been known to work for criminals such as
stalkers
Stalking is unwanted and/or repeated surveillance by an individual or group toward another person. Stalking behaviors are interrelated to harassment and intimidation and may include following the victim in person or monitoring them. The term ...
and
crime boss
A crime boss, also known as a crime lord, Don, gang lord, gang boss, mob boss, kingpin, godfather, crime mentor or criminal mastermind, is a person in charge of a criminal organization.
Description
A crime boss typically has absolute or nearl ...
es to track down escaped victims, rival criminals and/or
witness
In law, a witness is someone who has knowledge about a matter, whether they have sensed it or are testifying on another witnesses' behalf. In law a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, e ...
es that have gone into hiding or to gather compromising evidence against witnesses,
informants
An informant (also called an informer or, as a slang term, a “snitch”) is a person who provides privileged information about a person or organization to an agency. The term is usually used within the law-enforcement world, where informan ...
,
prosecutors
A prosecutor is a legal representative of the prosecution in states with either the common law adversarial system or the Civil law (legal system), civil law inquisitorial system. The prosecution is the legal party responsible for presenting the ...
and/or police investigators that could be used in upcoming
trial
In law, a trial is a coming together of Party (law), parties to a :wikt:dispute, dispute, to present information (in the form of evidence (law), evidence) in a tribunal, a formal setting with the authority to Adjudication, adjudicate claims or d ...
s.
Responsibilities
Private investigators also engage in a variety of work not often associated with the industry in the mind of the public. For example, many are involved in
process serving, the personal delivery of summons,
subpoena
A subpoena (; also subpœna, supenna or subpena) or witness summons is a writ issued by a government agency, most often a court, to compel testimony by a witness or production of evidence under a penalty for failure. There are two common types of ...
s, and other legal documents to parties in a legal case. The tracing of absconding debtors can also form a large part of a PI's work load. Many agencies specialize in a particular field of expertise. For example, some PI agencies deal only in tracing.
A handful of firms specialize in
technical surveillance counter-measures
Countersurveillance refers to measures that are usually undertaken by the public to prevent surveillance, including covert surveillance. Countersurveillance may include electronic methods such as technical surveillance counter-measures, which is ...
, sometimes called electronic counter measures, which is the locating and dealing with unwanted forms of electronic surveillance (for example, a bugged boardroom for industrial espionage purposes). This niche service is typically conducted by those with backgrounds in intelligence/counterintelligence, executive protection, and a small number from law enforcement entities whose duties included the covert installation of eavesdropping devices as a tool in organized crime, terrorism and narco-trafficking investigations.
Other PIs, also known as corporate investigators, specialize in corporate matters, including antifraud work, loss prevention, internal investigations of employee misconduct (such as
Equal Employment Opportunities violations and sexual harassment), the protection of
intellectual property
Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, cop ...
and
trade secret
Trade secrets are a type of intellectual property that includes formulas, practices, processes, designs, instruments, patterns, or compilations of information that have inherent economic value because they are not generally known or readily asc ...
s, antipiracy,
copyright infringement
Copyright infringement (at times referred to as piracy) is the use of works protected by copyright without permission for a usage where such permission is required, thereby infringing certain exclusive rights granted to the copyright holder, s ...
investigations, due diligence investigations, malware and cyber criminal activity, and
computer forensics
Computer forensics (also known as computer forensic science) is a branch of digital forensic science pertaining to evidence found in computers and digital storage media. The goal of computer forensics is to examine digital media in a forensical ...
work. Some PIs act as professional witnesses where they observe situations with a view to reporting the actions or lack of them to a court or to gather evidence in
antisocial behavior
Antisocial may refer to:
Sociology, psychiatry and psychology
*Anti-social behaviour
* Antisocial personality disorder
*Psychopathy
*Conduct disorder
Law
*Anti-social Behaviour Act 2003
*Anti-Social Behaviour Order
*Crime and Disorder Act 1998
* ...
.
Undercover investigator
An undercover investigator, undercover detective, or undercover agent is a person who conducts investigations of suspected or confirmed criminal activity while impersonating a disinterested third party. Undercover investigators often infiltrate a suspected insurgent group, posing as a person interested in purchasing illegal goods or services with the ultimate aim of obtaining information about their assigned target.
Many undercover investigators carry
hidden camera
A hidden camera or spy camera is a camera used to photograph or record subjects, often people, without their knowledge. The camera may be considered "hidden" because it is not visible to the subject being filmed, or is disguised as another obje ...
s and recorders strapped to their bodies to help them document their investigations. The period of the investigation could last for several months, or in some extreme cases, years. Due to the dangerous nature of the job, their real identities are kept secret throughout their active careers.
Economic investigations, business intelligence and information on competitors, security advice, special security services information, criminal investigation, investigations background, and profile polygraph tests are all typical examples of such a role.
Certain types of undercover investigators, depending on their employer, will investigate allegations of abuse of workman's compensation. Those claiming to be injured are often investigated and recorded with a hidden camera/recorder. This is then presented in court or to the client who paid for the investigation.
Across the world
Many jurisdictions require PIs to be licensed. Depending on local laws, they may or may not carry a
firearm
A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions).
The first firearms originated in 10th-century China, when bamboo tubes ...
. Equipment can vary greatly, but generally involves a wide variety of
surveillance equipment and recording devices. While PIs may investigate criminal matters, they typically do not hold any
law enforcement authority by virtue of the position, regardless of licensure. Private investigators’ authority is usually identical to other citizens’ (off-duty or retired
law enforcement officers
A law enforcement officer (LEO), or peace officer in North American English, is a public-sector employee whose duties primarily involve the enforcement of laws. The phrase can include campaign disclosure specialists, local police officers, prose ...
serving as a PI may retain their police powers at all times, depending on the jurisdiction). They are expected to keep detailed notes and to be prepared to testify in court regarding any of their observations on behalf of their clients, irregular hours may also be required when performing surveillance work.
Great care is required to remain within the scope of the law; otherwise, the private investigator may face criminal charges. However, there are also cases across the world, of corrupt or rogue private investigators who have obtained people's private data and information through illegal means. These include phone hacking,
pretexting
Pretexting is a type of social engineering attack that involves a situation, or pretext, created by an attacker in order to lure a victim into a vulnerable situation and to trick them into giving private information, specifically information that t ...
, identity theft and other illegal means of accessing government, insurance and police databases to obtain highly sensitive private information on their targets.
Australia
Private investigators in Australia must be licensed by the licensing authority relevant to the state where they are located. This applies to all states except the Australian Capital Territory. Companies offering investigation services must also hold a business licence and all their operatives must hold individual licences. Generally, the licences are administered and regulated by the state police; however, in some states, this can also be managed by other government agencies.
To become registered in New South Wales requires a CAPI licence, which can be applied for through the NSW Police Force website.
The Australian Capital Territory does not require PIs to be licensed, although they are still bound by legislation. PIs working in the ACT cannot enter the NSW area without a CAPI license, else they will be in breach of the law.
In Queensland, a private investigator need to be licensed under the
Queensland Government
The Queensland Government is the democratic administrative authority of the Australian state of Queensland. The Government of Queensland, a parliamentary constitutional monarchy was formed in 1859 as prescribed in its Constitution, as amended fr ...
and apply for a private investigator licence by completing an application for a security provider licence. Applicant will need to have a criminal history check and submit fingerprint.
UK
In 2001, the government passed the licensing of private investigators and private investigation firms in the UK over to the
Security Industry Authority
The Security Industry Authority (SIA) is the statutory organisation responsible for regulating the private security industry in the UK. Established as a non-departmental public body in 2003, the SIA reports to the Home Secretary under the ter ...
(SIA), which acted as the regulatory body from then on. However, due to the cutbacks of this agency, licensing of private investigators in the UK was halted indefinitely. At present, no government-backed authorities in the UK license private investigators.
The SIA have announced that PIs in the UK were to become licensed for the first time from May 2015, but this is only the scheduled date for the issue to be discussed in parliament. In December 2014, Corporate Livewire produced an article written by a UK private investigator at BAR Investigations, addressing the issues surrounding private investigation in the UK.
United States
Private investigators in the United States may or may not be licensed or registered by a government licensing authority or state police of the state where they are located. Licensing varies from state to state and can range from: a) no state license required; b) city or state business license required (such as in five states (
Idaho
Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyom ...
,
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
,
Mississippi
Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...
,
South Dakota
South Dakota (; Sioux language, Sioux: , ) is a U.S. state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota people, Lakota and Dakota peo ...
, and
Wyoming
Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the south ...
); c) to needing several years of experience and licensing-related training classes and testing (as is the case with
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
, West Virginia, and
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
). In many states, companies offering investigation services must hold an agency license, and all of their investigators or detectives must hold individual licenses or registrations; furthermore, certain states such as
Washington
Washington commonly refers to:
* Washington (state), United States
* Washington, D.C., the capital of the United States
** A metonym for the federal government of the United States
** Washington metropolitan area, the metropolitan area centered o ...
have separate classes of licensing for roles such as trainers of private investigators. A few reciprocity agreements allow a detective working in one state to continue work in another for a limited time without getting a separate license, but not all states participate in these agreements.
In 1877,
Colorado
Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...
became the first state in the union to institute licensing requirements for private investigators, as stated in the 1877 Legislative Manual. In 1977, when
El Paso County challenged a local security company's right to conduct investigations without a license,
Colorado Supreme Court
The Colorado Supreme Court is the highest court in the U.S. state of Colorado. Located in Denver, the Court consists of a Chief Justice and six Associate Justices.
Powers and duties
Appellate jurisdiction
Discretionary appeals
The Court p ...
declared the licensing law too vague because it didn't adequately define a "detective business" and struck it down. Following this, several private investigators formed Professional Private Investigators Association of Colorado (PPIAC) in order to try to get the licensing laws reinstated, but the bills died in the General Assembly. On June 10, 2011,
Governor
A governor is an administrative leader and head of a polity or political region, ranking under the head of state and in some cases, such as governors-general, as the head of state's official representative. Depending on the type of political ...
John Hickenlooper
John Wright Hickenlooper Jr. (; born February 7, 1952) is an American politician serving as the junior United States senator from Colorado since 2021. A member of the Democratic Party, he served as the 42nd governor of Colorado from 2011 to 20 ...
signed into law Colorado House Bill 1195, which reinstated licenses for private investigators on voluntary basis effective July 1, 2012. A license applicant would have to be of 21 years of age or older, hold United States citizenship and have at least 4,000 hours of work experience as an investigator or part of a local, state or federal law enforcement agency; or 2,000 hours with post-secondary education.
On June 6, 2014, Hickenlooper signed into law Senate Bill 133, which effective June 1, 2015, made licensure mandatory. This split the licenses into two categories: Class I, requiring the applicant to be 21 years of age or older, hold United States citizenship and pass the Colorado Jurisprudence Exam. Class II requires in addition to Class I requirements a minimum of 4,000 hours of work experience as an investigator or part of a local, state or federal law enforcement agency. In 2019, following a review, the
Colorado Department of Regulatory Agencies
The Colorado Department of Regulatory Agencies (DORA) is the principal department of the Colorado state government responsible for professional licensing and consumer protection.
As the consumer protection agency for the State of Colorado, DORA' ...
' Office of Policy, Research and Regulatory Reform suggested licensure requirement elimination, predicting "little to no consumer harm". In June 2020, Governor
Jared Polis
Jared Schutz Polis (; born May 12, 1975) is an American politician, entrepreneur, businessman, and philanthropist, serving as the 43rd governor of Colorado since January 2019. He served one term on the Colorado State Board of Education from 20 ...
vetoed House Bill 1207 to keep licensure requirements, causing the licensure requirements to expire on August 31, 2021.
Florida has 3 types of licenses - Class CC for private investigator intern, C for private investigator, and MA for manager of a private investigative agency. As Class C license requires at least 2 years of experience, most applicants start with Class CC, which allows them to work under a sponsorship of a licensed Class C investigator.
For a Private Investigator License in New York, an investigator needs 3 years of verifiable experience, and to pass a NY State Department of State Division of licensing Services exam.
In 1893
a federal law was passed explicitly barring the government from employing the Pinkerton Detective Agency or a similar agency.
Canada
Private investigators in Canada are licensed at the provincial level by the appropriate body. For instance, in the province of
Ontario
Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...
, private investigators are licensed and regulated by the Ministry of Community Safety & Correctional Services (MCSCS). In the province of
Alberta
Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...
, private investigators are licensed and regulated by the Alberta Justice and Solicitor General. Similar licensing requirements apply in other
provinces and territories of Canada
Within the geographical areas of Canada, the ten provinces and three territories are sub-national administrative divisions under the jurisdiction of the Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North ...
. As per the
Ontario
Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...
text of th
Private Security and Investigative Services Act of 2005 private investigators are forbidden from referring to themselves as
detective
A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads th ...
or
private detective
A private investigator (often abbreviated to PI and informally called a private eye), a private detective, or inquiry agent is a person who can be hired by individuals or groups to undertake investigatory law services. Private investigators of ...
. In order to become a licensed private investigator, you must be 18 years of age or older in
Ontario
Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...
(in other
Provinces and territories of Canada
Within the geographical areas of Canada, the ten provinces and three territories are sub-national administrative divisions under the jurisdiction of the Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North ...
the eligible age to work may be higher); have a clean criminal record or obtain a waiver; and submit a correctly completed application for a license. You are required to complete 50-hours of basic training with an accredited source such as a university, college, or through private agencies licensed to administer the course. Upon completion of basic training, individuals are required to write and pass the basic test to obtain a private investigator's license.
Fiction
The PI genre in fiction dates to
Edgar Allan Poe
Edgar Allan Poe (; Edgar Poe; January 19, 1809 – October 7, 1849) was an American writer, poet, editor, and literary critic. Poe is best known for his poetry and short stories, particularly his tales of mystery and the macabre. He is wide ...
, who created the character
C. Auguste Dupin
''Le Knight, Chevalier'' C. Auguste Dupin is a fictional character created by Edgar Allan Poe. Dupin made his first appearance in Poe's 1841 short story "The Murders in the Rue Morgue", widely considered the first detective fiction story. He rea ...
in the 1840s. Dupin, an amateur crime-solver residing in Paris, appeared in three Poe stories. In addition,
Sherlock Holmes
Sherlock Holmes () is a fictional detective created by British author Arthur Conan Doyle. Referring to himself as a " consulting detective" in the stories, Holmes is known for his proficiency with observation, deduction, forensic science and ...
, created by
Arthur Conan Doyle
Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician. He created the character Sherlock Holmes in 1887 for ''A Study in Scarlet'', the first of four novels and fifty-six short stories about Ho ...
in the late 1880s, is arguably the most prominent private investigator in fiction.
Notable private investigators
In reality
*
P. Balasubramaniam
*
Rick Crouch
Richard "Rick" Crouch (born 6 September 1960) is a South African politician and City Councillor in the eThekwini Metropolitan Municipality representing the official opposition Democratic Alliance. Aside from being a former politician Crouch is ...
*
David Fechheimer
*
Charles Frederick Field
*
Dashiell Hammett
Samuel Dashiell Hammett (; May 27, 1894 – January 10, 1961) was an American writer of hard-boiled detective novels and short stories. He was also a screenwriter and political activist. Among the enduring characters he created are Sam Spade ('' ...
(also a notable author of detective fiction)
*
Justin Hopson
Justin Hopson is a retired New Jersey State Trooper, investigative & media consultant, author of ''Breaking the Blue Wall: One Man's War Against Police Corruption''
New Jersey State Police
As a trooper, Hopson investigated fatal accidents, homicid ...
*
Rajani Pandit
*
Anthony Pellicano
Anthony Pellicano (born March 22, 1944) is a former high-profile Los Angeles private investigator and convicted criminal known as a Hollywood fixer. He served a term of thirty months in a federal prison for illegal possession of explosives, fi ...
*
Allan Pinkerton
Allan J. Pinkerton (August 25, 1819 – July 1, 1884) was a Scottish cooper, abolitionist, detective, and spy, best known for creating the Pinkerton National Detective Agency in the United States and his claim to have foiled a plot in 1861 to a ...
*
Josiah "Tink" Thompson
*
Eugène François Vidocq
Eugène-François Vidocq (; 24 July 1775 – 11 May 1857) was a French criminal turned criminalist, whose life story inspired several writers, including Victor Hugo, Edgar Allan Poe and Honoré de Balzac. The former criminal became the founder a ...
*
Kate Warne
Kate Warne (1833 – January 28, 1868) was an American law enforcement officer known as the first female detective, in 1856, in the Pinkerton Detective Agency and the United States.
Pre–Civil War Early detective work: 1856–1861
Very li ...
*
David P. Weber
David Paul Weber is an American criminalist, and the former Assistant Inspector General for Investigations at the U.S. Securities and Exchange Commission (SEC). He is the Principal Investigator of a $2.6 million grant by the U.S. Department of H ...
In fiction
Where the characters below do not meet the strict criteria of a private investigator (i.e. available for hire) it is noted in brackets.
American
*
Harry Dresden
''The Dresden Files'' is a series of contemporary fantasy/ mystery novels written by American author Jim Butcher. The first novel, '' Storm Front''—which was also Butcher's writing debut—was published in 2000 by Roc Books.
The books are w ...
*
Mike Hammer Michael Hammer or Mike Hammer may refer to:
*Michael Armand Hammer (1955–2022), American philanthropist and businessman
*Michael Martin Hammer (1948–2008), engineer and author
*Mike Hammer (character), a fictional hard boiled detective
** ''Mick ...
*
Philip Marlowe
Philip Marlowe () is a fictional character created by Raymond Chandler, who was characteristic of the hardboiled crime fiction genre. The hardboiled crime fiction genre originated in the 1920s, notably in ''Black Mask'' magazine, in which Dashiel ...
*
Kinsey Millhone
Kinsey Millhone is a fictional character created by the American author Sue Grafton (1940–2017) for her "alphabet mysteries" series of 25 best-selling novels which debuted in 1982. Millhone, a former police officer turned private investigator, a ...
*
Ezekiel "Easy" Rawlins
*
John Shaft
John Shaft is a fictional character created by author/screenwriter Ernest Tidyman for the 1970 novel of the same name. He was portrayed by Richard Roundtree in the original 1971 film and in its four sequels, '' Shaft's Big Score!'' (1972), '' Sh ...
*
Sam Spade
*
Spenser
*
V. I. Warshawski
Victoria Iphigenia "Vic" "V. I." Warshawski is a fictional private investigator from Chicago who is the protagonist featured in a series of detective novels and short stories written by Chicago author Sara Paretsky.
With the exception of "The ...
*
Nero Wolfe
Nero Wolfe is a brilliant, obese and eccentric fictional armchair detective created in 1934 by American mystery writer Rex Stout. Wolfe was born in Montenegro and keeps his past murky. He lives in a luxurious brownstone on West 35th Street in Ne ...
*
Jack Reacher
Jack Reacher is the protagonist of a series of crime thriller novels by British author Lee Child. In the stories, Jack Reacher was a major in the US Army's military police. Having left the Army at age 36, Reacher roams the United States, tak ...
*
Sunny Randall
*
Johnny Dollar Johnny Dollar may refer to:
* ''Yours Truly, Johnny Dollar'', a radio drama
* Johnny Dollar (musician) (1933–1986), American country and rockabilly musician
* Johnny Dollar (blues musician) (1941–2006), American Chicago blues guitarist, singer ...
Bengali
*
Arjun
*
Byomkesh Bakshi
Byomkesh Bakshi is an Indian-Bengali fictional detective created by Sharadindu Bandyopadhyay. Referring to himself as a "truth-seeker" or Satyanweshi in the stories, Bakshi is known for his proficiency with observation, logical reasoning, and ...
*
Parashor Barma
*
Feluda
Feluda, or Prodosh Chandra Mitra itter'', is a fictional detective, Private investigator created by famous Indian director and writer Satyajit Ray. Feluda resides at 21 Rajani Sen Road, Ballygunge, Calcutta, West Bengal. Feluda first made his ap ...
*
Jayanta-Manik
Jayanta and Manik are the fictional detective characters created by Bengali novelist Hemendra Kumar Roy. Roy wrote a number of stories of Jayanta-Manik which are considered as one of the most popular children's literature in Bengal.
Character
'' ...
*
Mitin Masi
*
Bhaduri Moshai Bhaduri Moshai (Mr. Bhaduri) is a fictional detectives, fictional detective character of Bengali language, Bengali poet and novelist Nirendranath Chakraborty. Chakraborty wrote a series of thriller stories of Bhaduri Moshai.
Character
Bhaduri Mos ...
*
Kiriti Roy
Kiriti Roy is a fictional detective of Bengali literature created by Dr. Nihar Ranjan Gupta. The first story introduces him as follows: "Kiriti Roy is six and a half feet tall, fair and stout. His curled hair is mostly combed back, and the black ...
*
Colonel Niladri Sarkar
Niladri Sarkar or Colonel Niladri Sarkar is a fictional detective character created by Bengali novelist Syed Mustafa Siraj. Some of the Colonel stories written for children were translated into English.
Character
Niladri Sarkar is a retired Col ...
*
Goenda Baradacharan
Goenda Baradacharan is a Bengali fictional detective character created by novelist Shirshendu Mukhopadhyay. The character first appeared in the novel ''Monojder Advut Bari''. Thereafter, a short story ''Goenda Baradacharan'' was published in Anand ...
European
*
Auguste Dupin
''Le Chevalier'' C. Auguste Dupin is a fictional character created by Edgar Allan Poe. Dupin made his first appearance in Poe's 1841 short story "The Murders in the Rue Morgue", widely considered the first detective fiction story. He reappears ...
*
Marcus Didius Falco
Lindsey Davis (born 1949) is an English historical novelist, best known as the author of the Falco series of historical crime stories set in ancient Rome and its empire. She is a recipient of the Cartier Diamond Dagger award.
Life and caree ...
*
Erast Fandorin
Erast Petrovich Fandorin (russian: Эраст Петрович Фандорин) is a fictional 19th-century Russian detective and the hero of a series of Russian historical detective novels by Boris Akunin.
The first Fandorin novel (''The Winte ...
*
Sherlock Holmes
Sherlock Holmes () is a fictional detective created by British author Arthur Conan Doyle. Referring to himself as a " consulting detective" in the stories, Holmes is known for his proficiency with observation, deduction, forensic science and ...
*
Tintin
Tintin or Tin Tin may refer to:
''The Adventures of Tintin''
* ''The Adventures of Tintin'', a comics series by Belgian cartoonist Hergé
** Tintin (character), a fictional character in the series
** ''The Adventures of Tintin'' (film), 2011, ...
*
Miss Marple
Miss Marple is a fictional character in Agatha Christie's crime novels and short stories. Jane Marple lives in the village of St. Mary Mead and acts as an amateur consulting detective. Often characterized as an elderly spinster, she is one of Chr ...
*
Hercule Poirot
Hercule Poirot (, ) is a fictional Belgian detective created by British writer Agatha Christie. Poirot is one of Christie's most famous and long-running characters, appearing in 33 novels, two plays ('' Black Coffee'' and ''Alibi''), and more ...
*
Mma Precious Ramotswe
*
Cormoran Strike
''Cormoran Strike'' is a series of crime fiction novels written by British author J. K. Rowling, published under the pseudonym Robert Galbraith. The story chronicles the cases of private detective Cormoran Strike and his partner Robin Ellacot ...
*
Varg Veum
Varg Veum is the central character in a series of crime novels, written by the Norwegian author Gunnar Staalesen, about a private detective who lives in Bergen, on the west coast of Norway. The books have been translated into several languages, ...
=Comics, graphic novels, and manga
=
*
Tintin
Tintin or Tin Tin may refer to:
''The Adventures of Tintin''
* ''The Adventures of Tintin'', a comics series by Belgian cartoonist Hergé
** Tintin (character), a fictional character in the series
** ''The Adventures of Tintin'' (film), 2011, ...
*
Detective Conan
''Case Closed'', also known as , is a Japanese detective fiction, detective manga series written and illustrated by Gosho Aoyama. It has been serialized in Shogakukan's Shōnen manga, ''shōnen'' manga magazine ''Weekly Shōnen Sunday'' ...
*
The Kindaichi Case Files
is a Japanese mystery manga series based on the crime solving adventures of a high school student, Hajime Kindaichi, the supposed grandson of the famous (fictional) private detective Kosuke Kindaichi. Written by Yōzaburō Kan ...
*
Jessica Jones
Jessica Campbell Jones Cage is a superheroine appearing in American comic books published by Marvel Comics. The character was created by writer Brian Michael Bendis and artist Michael Gaydos and first appeared in ''Alias'' #1 (November 2001) ...
*
Rip Kirby
''Rip Kirby'' is an American comic strip created by Alex Raymond and Ward Greene featuring the adventures of private detective Rip Kirby. The strip ran from 1946 to 1999 and was in the hands of artist John Prentice for more than 40 years.
Pub ...
*
L. Lawliet
, known mononymously as L, is a fictional character in the manga series '' Death Note'', created by Tsugumi Ohba and Takeshi Obata. He is an enigmatic, mysterious, and highly-esteemed international consulting detective whose true identity and ba ...
*
Sam & Max
''Sam & Max'' is an American media franchise about Sam and Max, a pair of anthropomorphic vigilante private investigators. The characters, who occupy a universe that parodies American popular culture, were created by Steve Purcell in his yout ...
*
Dick Tracy
''Dick Tracy'' is an American comic strip featuring Dick Tracy (originally Plainclothes Tracy), a tough and intelligent police detective created by Chester Gould. It made its debut on Sunday, October 4, 1931, in the ''Detroit Mirror'', and it ...
*
Eddie Valiant
Eddie Valiant is the main protagonist of the novel ''Who Censored Roger Rabbit?'', and the film adaptation, ''Who Framed Roger Rabbit''.
''Who Censored Roger Rabbit?''
In the original novel ''Who Censored Roger Rabbit?'', Eddie Valiant is a fict ...
*
Tracer Bullet
Film and television
*
Paul Drake (Perry Mason)
*
Angel (Buffy the Vampire Slayer)
Angel is a fictional character created by Joss Whedon and David Greenwalt for the American television programs ''Buffy the Vampire Slayer'' and its spin-off series ''Angel''. The character is portrayed by actor David Boreanaz. As introduced in ''B ...
*
Chip n' Dale
Chip and Dale (also spelled Chip 'n' Dale) is a cartoon duo of anthropomorphic chipmunks created in 1943 by The Walt Disney Company.
Concept
The characters were first drawn by Bill Justice and introduced in the 1943 Pluto short ''Private ...
from
Rescue Rangers iterations.
*
Phryne Fisher
The Honourable Phryne Fisher ( ), often called "Miss Fisher", is the main character in Australian author Kerry Greenwood's series of Phryne Fisher detective novels. The character later appeared in a television series called '' Miss Fisher's Mur ...
*
Laura Holt
*
Thomas Magnum
Thomas Sullivan Magnum IV is a fictional character on the American television series '' Magnum, P.I.''. As the title suggests, the character Magnum is a private investigator. In the original series, Magnum was portrayed by Tom Selleck. Jay Hern ...
*
Richard Castle
Richard Edgar "Rick" Castle (born Richard Alexander Rodgers) is a fictional character on the ABC crime series '' Castle''. He is portrayed by Nathan Fillion.
The name Richard Castle is also used as a pseudonym under which a set of real books a ...
*
Jessica Jones
Jessica Campbell Jones Cage is a superheroine appearing in American comic books published by Marvel Comics. The character was created by writer Brian Michael Bendis and artist Michael Gaydos and first appeared in ''Alias'' #1 (November 2001) ...
*
Joe Mannix
*
Veronica Mars
''Veronica Mars'' is an American teen noir mystery drama television series created by screenwriter Rob Thomas. The series is set in the fictional town of Neptune, California, and stars Kristen Bell as the eponymous character. The series prem ...
*
Michael Westen
Michael Alan Westen is a fictional character played by Jeffrey Donovan in the television series '' Burn Notice'', created by Matt Nix. Westen, a spy and former U.S. Army soldier serving in special operations, is widely known as a top CIA operativ ...
*
Adrian Monk
Adrian Monk, portrayed by Tony Shalhoub, is the title character and protagonist of the USA Network television series ''Monk''. He is a renowned former homicide detective for the San Francisco Police Department. Monk has obsessive–compulsive ...
*
Jim Rockford
*
Simon & Simon
''Simon & Simon'' is an American crime drama television series that originally ran from November 24, 1981, to September 16, 1989. The series was broadcast on CBS, and starred Gerald McRaney and Jameson Parker as two disparate brothers who operate ...
*
Shawn Spencer
Shawn Spencer is a fictional character and main protagonist on the American television comedy-drama ''Psych'' played by American actor James Roday Rodriguez. Taking advantage of his eidetic memory and keen observational skills, he poses as a p ...
*
Sherlock Hound
is an anime television series produced by RAI and Tokyo Movie Shinsha. Based on the character Sherlock Holmes by Arthur Conan Doyle, almost all the characters are depicted as anthropomorphic dogs. The show featured regular appearances of ...
*
Hetty Wainthropp
*
Frank Marker
''Public Eye'' is a British television drama series that ran from 1965 to 1975, for a total of seven series. It was produced by ABC Weekend TV for three series, and Thames Television for a further four. The series depicted the cases and invest ...
*
Frankie Drake
*
Nick and Nora Charles
Nick and Nora Charles are fictional characters created by Dashiell Hammett in his novel ''The Thin Man''. The characters were later adapted for film in a series of films between 1934 and 1947; for radio from 1941 to 1950; for television from 1957 ...
Children's fiction
*
Basil of Baker Street
''Basil of Baker Street'' is a series of children's novels written by Eve Titus and illustrated by Paul Galdone. The stories focus on the titular Basil of Baker Street and his personal biographer Doctor David Q. Dawson. Together they solve the ma ...
*
The Bloodhound Gang
The Bloodhound Gang was an American rap rock band from Collegeville, Pennsylvania. It was founded in 1988 by rappers Jimmy Pop and Daddy Long Legs (now in Wolfpac) as a hip hop music, hip-hop group, before branching out into other genres as thei ...
(Amateur juvenile detectives)
*
Nancy Drew
Nancy Drew is a Fictional character, fictional character appearing in several Mystery fiction, mystery book series, movies, and a TV show as a teenage amateur sleuth. The books are ghostwriter, ghostwritten by a number of authors and published ...
(Amateur juvenile detective)
*
The Hardy Boys
The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in several mystery series for children and teens. The series revolves around teenagers who are amateur sleuths, solving cases that stumped their adult counterp ...
(Amateur juvenile detectives)
*
Three Investigators
The Three Investigators is an American juvenile detective book series first published as "''Alfred Hitchcock and the Three Investigators''". It was created by Robert Arthur Jr., who believed involving a famous person such as movie director Alfr ...
(Amateur juvenile detectives)
*
Encyclopedia Brown
''Encyclopedia Brown'' is a series of books featuring the adventures of boy detective Leroy Brown, nicknamed "Encyclopedia" for his intelligence and range of knowledge. The series of 29 children's novels was written (one co-written) by Donald ...
(Amateur juvenile detective)
In games
*
Booker DeWitt
The ''BioShock'' series is a collection of story-driven first-person shooters in which the player explores dystopian settings created by Ken Levine and his team at Irrational Games. The first two games, ''BioShock'' and its direct sequel, ''Bio ...
('' BioShock: Infinite'')
*
Tex Murphy
Tex may refer to:
People and fictional characters
* Tex (nickname), a list of people and fictional characters with the nickname
* Joe Tex (1933–1982), stage name of American soul singer Joseph Arrington Jr.
Entertainment
* ''Tex'', the Italian ...
(''Tex Murphy
Tex may refer to:
People and fictional characters
* Tex (nickname), a list of people and fictional characters with the nickname
* Joe Tex (1933–1982), stage name of American soul singer Joseph Arrington Jr.
Entertainment
* ''Tex'', the Italian ...
'')
*
Sam & Max
''Sam & Max'' is an American media franchise about Sam and Max, a pair of anthropomorphic vigilante private investigators. The characters, who occupy a universe that parodies American popular culture, were created by Steve Purcell in his yout ...
(''Sam & Max
''Sam & Max'' is an American media franchise about Sam and Max, a pair of anthropomorphic vigilante private investigators. The characters, who occupy a universe that parodies American popular culture, were created by Steve Purcell in his yout ...
'')
*
Gabriel Knight
''Gabriel Knight'' is a series of point-and-click adventure games released by Sierra On-Line in the 1990s created by Jane Jensen. The titular character is an author and book store owner in New Orleans who is investigating a strange series of murde ...
(''Gabriel Knight
''Gabriel Knight'' is a series of point-and-click adventure games released by Sierra On-Line in the 1990s created by Jane Jensen. The titular character is an author and book store owner in New Orleans who is investigating a strange series of murde ...
'')
*
Nick Valentine
Nick Valentine is a fictional character in the post-apocalyptic themed ''Fallout'' media franchise. Valentine is first introduced as a non-player character in the 2015 role-playing video game ''Fallout 4'', where he plays an important role in it ...
(''Fallout 4
''Fallout 4'' is a 2015 action role-playing game developed by Bethesda Game Studios and published by Bethesda Softworks. It is the fourth main game in the ''Fallout'' series and was released worldwide on November 10, 2015, for PlayStation 4, ...
'')
*Paul Prospero
(''The Vanishing of Ethan Carter
''The Vanishing of Ethan Carter'' is a 2014 horror adventure video game developed and published by The Astronauts for Microsoft Windows, PlayStation 4, Xbox One and Nintendo Switch.
Gameplay
''The Vanishing of Ethan Carter'' is set in an open ...
'')
*
Takayuki Yagami
, for short, is a fictional character in Sega's 2018 action-adventure video game ''Judgment'', which is a spin-off from the ''Yakuza'' game series. Yagami is a former defense attorney who resigns after a client he successfully defended kill ...
(''
Judgment
Judgement (or US spelling judgment) is also known as ''adjudication'', which means the evaluation of evidence to decision-making, make a decision. Judgement is also the ability to make considered decisions. The term has at least five distinct u ...
'')
See also
*
Bounty hunter
A bounty hunter is a private agent working for bail bonds who captures fugitives or criminals for a commission or bounty. The occupation, officially known as bail enforcement agent, or fugitive recovery agent, has traditionally operated outsid ...
*
Detective
A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads th ...
**
Hotel detective
A hotel detective is a person in plain clothes hired to monitor the security of a hotel and investigate various security, morality, or rule violations therein. They are distinct from uniformed security guards employed by a hotel.
Hotel detecti ...
**
Store detective
A store detective (also known as Asset Protection Investigator, undercover shopper, Loss Prevention Detective, and Asset Protection Specialist) is a member of loss prevention whose main role is to prevent and detect theft (commonly known as shoplif ...
*
Insurance investigator
An insurance investigator examines insurance claims that are suspicious or otherwise in doubt. Investigators in this field have differing specialties and backgrounds. Some insurance companies have their own in-house investigation teams while other ...
*
Investigative journalism
Investigative journalism is a form of journalism in which reporters deeply investigate a single topic of interest, such as serious crimes, political corruption, or corporate wrongdoing. An investigative journalist may spend months or years rese ...
*
Mercenary
A mercenary, sometimes also known as a soldier of fortune or hired gun, is a private individual, particularly a soldier, that joins a military conflict for personal profit, is otherwise an outsider to the conflict, and is not a member of any o ...
**
Private Military Companies
A private military company (PMC) or private military and security company (PMSC) is a private company providing armed combat or security services for financial gain. PMCs refer to their personnel as "security contractors" or "private military ...
*
Mystery film
A mystery film is a genre of film that revolves around the solution of a problem or a crime. It focuses on the efforts of the detective, private investigator or amateur Detective, sleuth to solve the mysterious circumstances of an issue by means ...
*
Numerical analysis software
Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of numerical methods th ...
: i.e.
SAS,
Palantir Technologies
Palantir Technologies is a public American software company that specializes in big data analytics. Headquartered in Denver, Colorado, it was founded by Peter Thiel, Nathan Gettings, Joe Lonsdale, Stephen Cohen, and Alex Karp in 2003. The compa ...
Gotham
Vice Motherboard article on Palantir
/ref>
*Private police
Private police or special police are law enforcement bodies that are owned or controlled (or owned and controlled) by non-governmental entities. Additionally, the term can refer to an off-duty police officer while working for a private entity, ...
**Company police
Company police, also called '' private police'', are privately paid law enforcement officers who work for private security companies or private military companies rather than a municipal, county, state, or national agency.
Malaysia
In Malaysia, ...
*World Association of Detectives
The World Association of Detectives (W.A.D.) was founded in 1925. It is the ''International Association for Private Investigators and Security Service Organizations''. The World Association of Detectives was formed as a joint venture by the combin ...
References
External links
Bureau of Labor Statistics information
{{DEFAULTSORT:Private Investigator
Criminal investigation
Law enforcement occupations