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A miscarriage of justice occurs when a grossly unfair outcome occurs in a
criminal In ordinary language, a crime is an unlawful act punishable by a state or other authority. The term ''crime'' does not, in modern criminal law, have any simple and universally accepted definition,Farmer, Lindsay: "Crime, definitions of", in Can ...
or
civil proceeding Civil may refer to: * Civic virtue, or civility *Civil action, or lawsuit * Civil affairs *Civil and political rights * Civil disobedience *Civil engineering * Civil (journalism), a platform for independent journalism *Civilian, someone not a m ...
, such as the conviction and punishment of a person for a
crime In ordinary language, a crime is an unlawful act punishable by a State (polity), state or other authority. The term ''crime'' does not, in modern criminal law, have any simple and universally accepted definition,Farmer, Lindsay: "Crime, definit ...
they did not commit. Miscarriages are also known as wrongful convictions. Innocent people have sometimes ended up in prison for years before their conviction has eventually been overturned. They may be exonerated if new evidence comes to light or it is determined that the police or prosecutor committed some kind of misconduct at the original trial. In some jurisdictions this leads to the payment of compensation. Academic studies have found that the main factors contributing to miscarriages of justice are: eyewitness misidentification; faulty
forensic analysis Forensic science, also known as criminalistics, is the application of science to criminal and civil laws, mainly—on the criminal side—during criminal investigation, as governed by the legal standards of admissible evidence and criminal p ...
;
false confessions A false confession is an admission of guilt for a crime which the individual did not commit. Although such confessions seem counterintuitive, they can be made voluntarily, perhaps to protect a third party, or induced through coercive interrogat ...
by vulnerable suspects;
perjury Perjury (also known as foreswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding."Perjury The act or an inst ...
and lies stated by
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; misconduct by police,
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 ...
or
judges A judge is an official who presides over a court. Judge or Judges may also refer to: Roles *Judge, an alternative name for an adjudicator in a competition in theatre, music, sport, etc. *Judge, an alternative name/aviator call sign for a membe ...
; and/or
ineffective assistance of counsel In United States law, ineffective assistance of counsel (IAC) is a claim raised by a convicted criminal defendant asserting that the defendant's legal counsel performed so ineffectively that it deprived the defendant of the constitutional right gua ...
(e.g., inadequate
defense Defense or defence may refer to: Tactical, martial, and political acts or groups * Defense (military), forces primarily intended for warfare * Civil defense, the organizing of civilians to deal with emergencies or enemy attacks * Defense industr ...
strategies by the
defendant In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case. Terminology varies from one jurisdic ...
's or
respondent {{unreferenced, date=February 2012 A respondent is a person who is called upon to issue a response to a communication made by another. The term is used in legal contexts, in survey methodology, and in psychological conditioning. Legal usage In ...
's legal team). Some prosecutors' offices undertake conviction integrity reviews to prevent, identify, and correct wrongful convictions.


Prevalence

There are two main methods for estimating the prevalence of wrongful convictions.


Exoneration

The first is the number of exonerations where the guilty verdict has been vacated or annulled by a judge or higher court after new evidence has been brought forward proving the 'guilty' person is, in fact, innocent. Since 1989, the
Innocence Project Innocence Project, Inc. is a 501(c)(3) nonprofit legal organization that is committed to exonerating individuals who have been wrongly convicted, through the use of DNA testing and working to reform the criminal justice system to prevent futur ...
has helped overturn 375 convictions of American prisoners with updated DNA evidence. However, DNA testing occurs in only 5 to 10% of all criminal cases, and exonerations achieved by the Innocence Project are limited to murder and rape cases. This raises the possibility that there may be many more wrongful convictions for which there is no evidence available to exonerate the defendant. Studies cited by the Innocence Project estimate that between 2.3% and 5% of all prisoners in the U.S. are innocent. However, a more recent study looking at convictions in the state of Virginia during the 1970s and 1980s and matching them to later DNA analysis estimates a rate of wrongful conviction at 11.6%. A 2014 study published in ''
Proceedings of the National Academy of Sciences ''Proceedings of the National Academy of Sciences of the United States of America'' (often abbreviated ''PNAS'' or ''PNAS USA'') is a peer-reviewed multidisciplinary scientific journal. It is the official journal of the National Academy of Sci ...
'' made a conservative estimate that 4.1% of inmates awaiting execution on death row in the United States are innocent.


Self-report

The second method for estimating wrongful convictions involves self-report. Researchers ask prisoners whether they have ever confessed to a crime which they did not commit. Self-report allows examination of any and all crimes where wrongful conviction may have occurred, not just murder and rape cases where DNA is available. Two Icelandic studies based on self-report conducted ten years apart found the rates of false confession to be 12.2% and 24.4% respectively. These figures provide a proxy for miscarriages of justice because "false confessions are highly likely to lead to wrongful convictions". A more recent Scottish study found the rate of self-reported false confessions among a group of inmates in one prison was 33.4%. Another study estimated that up to 10,000 people may be wrongfully convicted of serious crimes in the United States each year. According to Professor Boaz Sangero of the College of Law and Business in
Ramat Gan Ramat Gan ( he, רָמַת גַּן or , ) is a city in the Tel Aviv District of Israel, located east of the municipality of Tel Aviv and part of the Tel Aviv metropolitan area. It is home to one of the world's major diamond exchanges, and many ...
, most wrongful convictions in Israel relate to less serious crimes than major felonies such as rape and murder, as judicial systems are less careful in dealing with those cases.


Contributing factors

Academics believe that six main factors contribute to miscarriages of justice. These include eyewitness misidentification, faulty forensic analysis, false confessions by vulnerable suspects, perjury and lies told by witnesses, misconduct by police, prosecutors or judges and inadequate defence strategies put forward by the defendant's legal team.Duncan, Colby (2019
"Justifying Justice: Six Factors of Wrongful Convictions and Their Solutions


Unreliability of eyewitness testimony

Eyewitness identifications are notoriously unreliable, contributing to 70% of wrongful convictions. Starting in the 1970s, psychologists studying memory formation and retention found that the way police lineups are conducted can alter an eyewitness's memory of the suspect and this often leads to misidentification. Witnesses also have considerable difficulty making accurate identifications with suspects from different ethnic groups such that "the rate of mistaken identification is significantly higher than most people tend to believe".Ralph Slovenko
Testifying with Confidence
J Am Acad Psychiatry Law, Vol. 27, No. 1, 1999
Elizabeth Loftus Elizabeth F. Loftus (born 1944) is an American psychologist who is best known in relation to the misinformation effect, false memory and criticism of recovered memory therapies. Loftus's research includes the effects of phrasing on the percep ...
, a leading researcher in the field, says memory is so unreliable "the end result can be a highly confident witness testifying in a persuasive manner at trial about a detail that is completely false".


Forensic mistakes


Contamination

Wrongful convictions can also occur when items which become evidence at crime scenes become contaminated in the process of packaging, collection and transportation to a secured facility or laboratory. Contamination can be introduced unintentionally by material that was not present when the crime was committed by anyone entering the crime scene after the event - by uninvolved
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 who may become
suspect In law enforcement jargon, a suspect is a known person accused or suspected of committing a crime. Police and reporters in the United States often use the word suspect as a jargon when referring to the perpetrator of the offense (perp in dated U ...
s, and by
emergency responders Emergency services and rescue services are organizations that ensure public safety and health by addressing and resolving different emergencies. Some of these agencies exist solely for addressing certain types of emergencies, while others deal wit ...
,
fire fighters A firefighter is a first responder and rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property, and the environment as well as to rescue people and in some cases or jurisdictions also ...
,
police officer A police officer (also called a policeman and, less commonly, a policewoman) is a warranted law employee of a police force. In most countries, "police officer" is a generic term not specifying a particular rank. In some, the use of the ...
s and
crime scene A crime scene is any location that may be associated with a committed crime. Crime scenes contain physical evidence that is pertinent to a criminal investigation. This evidence is collected by crime scene investigators (CSI) and law enforcement ...
investigators themselves. If proper protocols are not followed, evidence can also be contaminated when it is being analyzed or stored. A miscarriage of justice can occur when procedures to prevent contamination are not carried out carefully and accurately.


Faulty analysis

The Innocence Project says 44% of wrongful convictions are the result of faulty forensic analysis. This occurs when forensic experts inadvertently or deliberately misrepresent the significance, validity or reliability of scientific evidence. Over the years, misrepresentations have been made in the arenas of
serological Serology is the scientific study of serum and other body fluids. In practice, the term usually refers to the diagnostic identification of antibodies in the serum. Such antibodies are typically formed in response to an infection (against a given mi ...
analysis, microscopic hair comparison, and the analysis of bite marks, shoe prints, soil, fiber, and fingerprints.


Overconfident experts

Overly confident testimony by
expert witness An expert witness, particularly in common law countries such as the United Kingdom, Australia, and the United States, is a person whose opinion by virtue of education, training, certification, skills or experience, is accepted by the judge as ...
es can also lead to miscarriages of justice. The credibility of expert witnesses depends on numerous factors - in particular, their credentials, personal likability and self-confidence which all impact on how believable they are. The confidence with which experts present their evidence has also been noted to influence jurors, who tend to assume that a witness who is anxious or nervous is lying. The manner in which experts testify may have a greater impact on judges and lawyers who prefer experts who provide clear, unequivocal conclusions. The credentials and reputation of the expert also have a significant impact on juries. For example, Charles Smith was head of the Ontario Pediatric Forensic Pathology Unit from 1982 and the most highly regarded specialist in his field. His testimony led to the convictions of thirteen women whose children died in unexplained circumstance before it came to light that he had "a thing against people who hurt children", and "was on a crusade and acted more like a prosecutor" than a pathologist. An inquiry into his conduct concluded in October 2008 that Smith "actively misled" his superiors, "made false and misleading statements" in court and exaggerated his expertise in trials.


False confessions

The possibility that innocent people would admit to a crime they did not commit seems unlikely - and yet this occurs so often, the Innocence Project found false confessions contribute to approximately 25% of wrongful convictions in murder and rape cases. Certain suspects are more vulnerable to making a false confession under police pressure. This includes individuals who are intellectually impaired, and those who suffer from
mental illness A mental disorder, also referred to as a mental illness or psychiatric disorder, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Such features may be persistent, relapsing and remitti ...
.
Saul Kassin Saul Kassin is a distinguished professor of psychology at John Jay College of Criminal Justice - City University of New York and Massachusetts Professor Emeritus of Psychology at Williams College in Williamstown, Massachusetts. Biography and educa ...
, a leading expert on false confessions, says that young people are also particularly vulnerable to confessing, especially when stressed, tired, or traumatized.


Coercive interrogation techniques

Police often use coercive manipulation techniques when conducting interrogations in hopes of obtaining a confession. In the United States, one of these is known as the
Reid Technique The Reid technique is a method of interrogation. The system was developed in the United States by John E. Reid in the 1950s. Reid was a psychologist, polygraph expert, and former Chicago police officer. The technique is known for creating a high ...
after the officer who developed it, John Reid. Introduced in the 1940s and 50s, the strategy relies on deception, coercion and aggressive confrontation to secure confessions. It became the leading interrogation method used by law enforcement throughout the United States and has led to countless confessions by innocent people. As of 2014, this technique was still popular with police interrogators even though the strategy produces less information from suspects, provides fewer true confessions and more
false confessions A false confession is an admission of guilt for a crime which the individual did not commit. Although such confessions seem counterintuitive, they can be made voluntarily, perhaps to protect a third party, or induced through coercive interrogat ...
than less confrontational interviewing techniques.


Perjury and false accusations

Witnesses in police investigations may lie for a variety of reasons including: personal ill-will towards the
defendant In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case. Terminology varies from one jurisdic ...
, the desire to be paid, the desire to get a deal from prosecutors or police, or an effort to deflect attention from a person’s own involvement in a crime. An innocent person is more likely to be convicted when one or more witnesses have an incentive to testify, and those incentives are not disclosed to the jury. According to the
National Registry of Exonerations The National Registry of Exonerations is a project of the University of Michigan Law School, Michigan State University College of Law and the University of California Irvine Newkirk Center for Science and Society. The Registry was co-founded in 2012 ...
, 57% of cases where the convicted person was eventually exonerated involves perjury or false accusations.


Prosecutorial misconduct

This occurs in numerous ways including the concealment or destruction of exculpatory evidence; the failure to disclose exculpatory evidence to the defence; the failure to reveal that certain witnesses have been paid to testify; and the planting of incriminating evidence. An Innocence Project study found that 25% of DNA exonerations involved testimony that was known to be false by the police and another 11% involved the undisclosed use of coerced witness testimony. In other words, over one third of these wrongful convictions involved prosecutorial misconduct.


Role of bias and cognitive distortions

Confirmation bias Confirmation bias is the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values. People display this bias when they select information that supports their views, ignoring ...
is a psychological phenomenon whereby people tend to seek and interpret information in ways that support existing beliefs. Two inter-related mechanisms tend to operate: it begins with a biased interpretation of whatever information is available, followed by selectively searching for information which supports this interpretation.Motivational Sources of Confirmation Bias in Criminal Investigations: The Need for Cognitive Closure
J. Investig. Psych. Offender Profil. 2: 43–63 (2005)
In police investigations, this comes into play when detectives identify a suspect early in an investigation, come to believe he or she is guilty, and then ignore or downplay other evidence that points to someone else or doesn't fit their hypothesis about what occurred. A number of factors contribute to this process. First, police officers often have heavy workloads and, in high-profile cases, often come under considerable pressure to catch the perpetrator as soon as possible. This may encourage a rush to judgement - in a process described by psychologists as involving a high need for cognitive closure (NFC) - the desire for a clear-cut solution which avoids confusion and ambiguity. Second, after spending considerable time and resources trying to build a case against a particular suspect, it becomes difficult for police to admit they may be going down the wrong track. The embarrassment and loss of prestige that follows from admitting erroneous decisions may motivate investigators to continue down a chosen path and disregard evidence that points in a different direction. Third, criminal investigations are generally theory-driven activities. Investigators tend to evaluate evidence based on their preliminary theories or hypotheses about how, and by whom, a crime was committed. Because of the pressures described above, such hypotheses are sometimes based on the expectations and preconceptions of the investigators rather than on solid facts. A study in the
Journal of Investigative Psychology and Offender Profiling The ''Journal of Investigative Psychology and Offender Profiling'' is a peer-reviewed online-only academic journal covering the behavioral sciences as they relate to criminology and the legal system. It was established in 2004 and is published th ...
found that "criminal investigations which aim at generating evidence confirming an ill-founded hypothesis pose serious threats both to the security of innocent citizens and to the effectiveness of the law-enforcement system".


Noble cause corruption

Police may become convinced a particular suspect is guilty but not have sufficient evidence to prove it. Sometimes they may plant evidence in order to secure a conviction because they believe it is in the public interest, or that there is a greater good, in convicting a particular person. In other words, they believe that the ends (or the outcome) justifies the means. This is known as
noble cause corruption Noble cause corruption is corruption caused by the adherence to a teleological ethical system, suggesting that people will use unethical or illegal means to attain desirable goals, a result which appears to benefit the greater good. Where traditi ...
.


Plea bargaining

Another technique used by police is
plea bargain A plea bargain (also plea agreement or plea deal) is an agreement in criminal law proceedings, whereby the prosecutor provides a concession to the defendant in exchange for a plea of guilt or '' nolo contendere.'' This may mean that the defendan ...
ing whereby the
prosecutor 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 ...
provides a concession to the
defendant In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case. Terminology varies from one jurisdic ...
in exchange for a
plea In legal terms, a plea is simply an answer to a claim made by someone in a criminal case under common law using the adversarial system. Colloquially, a plea has come to mean the assertion by a defendant at arraignment, or otherwise in response ...
of guilt. This generally occurs when the defendant pleads guilty to a less serious charge, or to one of several charges, in return for the dismissal of the main charge; or it may mean that the defendant pleads guilty to the main charge in return for a more lenient sentence.


Compensation for wrongful conviction

Article 14(6) of the
International Covenant on Civil and Political Rights The International Covenant on Civil and Political Rights (ICCPR) is a multilateral treaty that commits nations to respect the civil and political rights of individuals, including the right to life, freedom of religion, freedom of speech, freedo ...
(ICCPR) states that when a miscarriage of justice has occurred and the defendant's conviction has been reversed or they have been pardoned, "the person who has suffered punishment as a result of such conviction shall be compensated according to law". The right to compensation is also authorised by Article 3 of Protocol No. 7 to the
European Convention for the Protection of Human Rights and Fundamental Freedoms The European Convention on Human Rights (ECHR; formally the Convention for the Protection of Human Rights and Fundamental Freedoms) is an international convention to protect human rights and political freedoms in Europe. Drafted in 1950 by th ...
and Article 10 of the
American Convention on Human Rights The American Convention on Human Rights, also known as the Pact of San José, is an international human rights instrument. It was adopted by many countries in the Western Hemisphere in San José, Costa Rica, on 22 November 1969. It came into forc ...
. Four broad approaches allow for the payment of compensation following a miscarriage of justice: tort liability in common law; claims for a breach of constitutional or human rights; statutory relief where specific legislation exists to compensate individuals who are wrongfully convicted; and non-statutory relief by way of
ex-gratia (; also spelled ''ex-gratia'') is Latin for "by favour", and is most often used in a legal context. When something has been done ''ex gratia'', it has been done voluntarily, out of kindness or grace. In law, an ''ex gratia payment'' is a paymen ...
schemes based on the largesse of the government. In a study of different approaches to the payment of compensation in the United States, the United Kingdom, Canada, Australia and New Zealand, only the US and the UK have statutory schemes in place. In the United States, the federal government, the District of Columbia, and 38 states have such legislation on their
statutes A statute is a formal written enactment of a legislative authority that governs the legal entities of a city, state, or country by way of consent. Typically, statutes command or prohibit something, or declare policy. Statutes are rules made by le ...
. Twelve states have no laws requiring compensation to be paid. However, each state differs widely in regard to eligibility requirements, maximum payments, issues concerning factual innocence, the burden of proof, the behaviour of the claimant which contributed to the (now overturned) conviction, and the claimant's prior criminal history. In some states, statutes of limitations also applies. The significant benefits of statutory schemes is that they provide money and services in compensation to individuals who have been wrongfully convicted without regard to fault or blame; they do not require claimants to prove how the prosecution or police committed their mistakes.


Implications

The concept of miscarriage of justice has important implications for
standard of review In law, the standard of review is the amount of deference given by one court (or some other appellate tribunal) in reviewing a decision of a lower court or tribunal. A low standard of review means that the decision under review will be varied or ov ...
, in that an
appellate court A court of appeals, also called a court of appeal, appellate court, appeal court, court of second instance or second instance court, is any court of law that is empowered to hear an appeal of a trial court or other lower tribunal. In much of ...
will often only exercise its
discretion Discretion has the meaning of acting on one's own authority and judgment. In law, discretion as to legal rulings, such as whether evidence is excluded at a trial, may be exercised by a judge. Some view discretion negatively, while some view it ...
to correct a
plain error The scope of review refers generally to the right to have an issue raised on appeal. It entails whether an issue was preserved by or available to an appellant on appeal. Scope of review is to the appellate court what the burden of proof is to the t ...
when a miscarriage of justice (or "manifest injustice") would otherwise occur. In recent years, DNA evidence has been used to clear many people falsely convicted. The risk of miscarriages of justice is often cited as a cause to eliminate the death penalty. When condemned persons are executed before they are determined to have been wrongly convicted, the effect of that miscarriage of justice is irreversible. Wrongly executed people nevertheless occasionally receive posthumous
pardon A pardon is a government decision to allow a person to be relieved of some or all of the legal consequences resulting from a criminal conviction. A pardon may be granted before or after conviction for the crime, depending on the laws of the ju ...
s—which essentially
void Void may refer to: Science, engineering, and technology * Void (astronomy), the spaces between galaxy filaments that contain no galaxies * Void (composites), a pore that remains unoccupied in a composite material * Void, synonym for vacuum, a ...
the conviction—or have their convictions quashed. Even when a wrongly convicted person is not executed, years in prison can have a substantial, irreversible effect on the person and their family. The risk of miscarriage of justice is therefore also an argument against long sentences, like a life sentence, and cruel prison conditions.


Consequences

Wrongful convictions appear at first to be "rightful" arrests and subsequent convictions, and also include a public statement about a particular crime having occurred, as well as a particular individual or individuals having committed that crime. If the conviction turns out to be a miscarriage of justice, then one or both of these statements is ultimately deemed to be false. In cases where a large-scale audience is unknowingly witness to a miscarriage of justice, the news-consuming public may develop false beliefs about the nature of crime itself. It may also cause the public to falsely believe that certain types of crime exist, or that certain types of people tend to commit these crimes, or that certain crimes are more commonly prevalent than they actually are. Thus, wrongful convictions can ultimately mold a society's popular beliefs about crime. Because our understanding of crime is socially constructed, it has been shaped by many factors other than its actual occurrence. Mass media may also be faulted for distorting the public perception of crime by over-representing certain races and genders as criminals and victims, and for highlighting more sensational and invigorating types of crimes as being more newsworthy. The way a media presents crime-related issues may have an influence not only on a society's fear of crime but also on its beliefs about the causes of criminal behavior and desirability of one or another approach to crime control. Ultimately, this may have a significant impact on critical public beliefs about emerging forms of crime such as cybercrime, global crime, and terrorism. Some wrongfully sanctioned people join organizations like the
Innocence Project Innocence Project, Inc. is a 501(c)(3) nonprofit legal organization that is committed to exonerating individuals who have been wrongly convicted, through the use of DNA testing and working to reform the criminal justice system to prevent futur ...
and
Witness to Innocence Witness to Innocence (WTI) is a non-profit organization based out of Philadelphia, Pennsylvania, dedicated to the effort of abolishing the death penalty in the United States. WTI began as a project of The Moratorium Campaign, led by Jené O'Keefe. ...
to publicly share their stories, as a way to counteract these media distortions and to advocate for various types of criminal justice reform. There are unfavorable psychological effects to those who were wrongfully sanctioned, even in the absence of any public knowledge. In an experiment, participants significantly reduced their pro-social behavior after being wrongfully sanctioned. As a consequence there were negative effects for the entire group. The extent of wrongful sanctions varies between societies. When a crime occurs and the wrong person is convicted for it, the actual perpetrator goes free and often goes on to commit additional crimes, including hundreds of cases of violent crime. A 2019 study estimated that "the wrong‐person wrongful convictions that occur annually
n the United States N, or n, is the fourteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''en'' (pronounced ), plural ''ens''. History ...
may lead to more than 41,000 additional crimes".


By country


Canada

A series of miscarriages of justice in Canada have led to reforms of the country's criminal justice system. In 1972,
Donald Marshall, Jr. Donald Marshall Jr. (13 September 1953 – 6 August 2009) was a Miꞌkmaq, Mi'kmaw man who was wrongful conviction, wrongly convicted of murder. The case inspired a number of questions about the fairness of the Canadian justice system, especi ...
, a
Mi'kmaq The Mi'kmaq (also ''Mi'gmaq'', ''Lnu'', ''Miꞌkmaw'' or ''Miꞌgmaw''; ; ) are a First Nations people of the Northeastern Woodlands, indigenous to the areas of Canada's Atlantic Provinces and the Gaspé Peninsula of Quebec as well as the northe ...
man, was wrongly convicted of murder. Marshall spent 11 years in jail before being acquitted in 1983. The case led to questions about the fairness of the Canadian justice system, especially given that Marshall was an Aboriginal: as the
Canadian Broadcasting Corporation The Canadian Broadcasting Corporation (french: Société Radio-Canada), branded as CBC/Radio-Canada, is a Canadian public broadcaster for both radio and television. It is a federal Crown corporation that receives funding from the government. ...
put it, "The name Donald Marshall is almost synonymous with 'wrongful conviction' and the fight for native justice in Canada." Marshall received a lifetime pension of $1.5 million in compensation and his conviction resulted in changes to the
Canada Evidence Act The ''Canada Evidence Act'' (french: Loi sur la preuve au Canada) is an act of the Parliament of Canada, first passed in 1893, that regulates the rules of evidence in court proceedings under federal law. As law of evidence is largely set by comm ...
so that any evidence obtained by the prosecution must be presented to the defence on disclosure. In 1992,
Guy Paul Morin Guy Paul Morin is a Canadian who was wrongly convicted of the October 1984 rape and murder of his nine-year-old next-door neighbour, Christine Jessop of Queensville, north of Toronto, Ontario. DNA testing led to a subsequent overturning of t ...
was convicted of the 1984 rape and murder of an 8-year-old girl and was sentenced to life imprisonment. In 1995, new testing of DNA evidence showed Morin could not have been the murderer, and the Ontario Court of Appeal overturned his conviction. The case has been described as "a compendium of official error — from inaccurate eyewitness testimony and police tunnel vision, to scientific bungling and the suppression of evidence." Morin received $1.25 million in compensation from the Ontario government.


China

A series of wrongful convictions uncovered in the 2010s has undermined public trust in the Chinese justice system.


Netherlands

In response to two overturned cases, the Schiedammerpark murder case and the Putten murder, the Netherlands created the "Posthumus I committee" which analyzed what had gone wrong in the Schiedammerpark murder case. The committee concluded that
confirmation bias Confirmation bias is the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values. People display this bias when they select information that supports their views, ignoring ...
led the police to ignore and misinterpret scientific evidence, specifically DNA. Subsequently, the Posthumus II committee investigated whether injustice occurred in similar cases. The committee received 25 applications from concerned and involved scientists and selected three for further investigation: the
Lucia de Berk Lucia de Berk (born September 22, 1961, in The Hague, Netherlands), often called Lucia de B., is a Dutch licensed paediatric nurse who was the subject of a miscarriage of justice. In 2003, she was sentenced to life imprisonment, for which no paro ...
case, the Ina Post case, and the Enschede incest case. In those three cases, independent researchers (professors Wagenaar, van Koppen, Israëls, Crombag, and Derksen) concluded that confirmation bias and misuse of complex scientific evidence led to miscarriages of justice.


Spain

The
Constitution of Spain The Spanish Constitution (Spanish, Asturleonese, and gl, Constitución Española; eu, Espainiako Konstituzioa; ca, Constitució Espanyola; oc, Constitucion espanhòla) is the democratic law that is supreme in the Kingdom of Spain. It was e ...
guarantees compensation in cases of miscarriage of justice.


United Kingdom

In the United Kingdom a jailed person, whose conviction is quashed, might be paid compensation for the time they were incarcerated. This is currently limited by statute to a maximum sum of £1,000,000 for those who have been incarcerated for more than ten years and £500,000 for any other cases, with deductions for the cost of food and prison cell during that time. See also Overturned convictions in the United Kingdom. Richard Foster, the Chairman of the
Criminal Cases Review Commission The Criminal Cases Review Commission (CCRC) is the statutory body responsible for investigating alleged miscarriages of justice in England, Wales, and Northern Ireland. It was established by Section 8 of the Criminal Appeal Act 1995 and bega ...
(CCRC), reported in October 2018 that the single biggest cause of miscarriage of justice was the failure to disclose vital evidence. A major factor leading to the abolition of capital punishment for murder in the United Kingdom was the case of
Timothy Evans Timothy John Evans (20 November 1924 – 9 March 1950) was a Welshman who was wrongly accused of murdering his wife (Beryl) and infant daughter (Geraldine) at their residence in Notting Hill, London. In January 1950, Evans was tried, and was c ...
, who was executed in 1950 after being wrongfully convicted of a murder that had in fact been committed by his neighbour.


England, Wales and Northern Ireland

Until 2005, the parole system assumed all convicted persons were guilty, and poorly handled those who were not. To be paroled, a convicted person had to sign a document in which, among other things, they confessed to the crime for which they were convicted. Someone who refused to sign this declaration spent longer in jail than someone who signed it. Some wrongly convicted people, such as the
Birmingham Six The Birmingham Six were six Irishmen who were each sentenced to life imprisonment in 1975 following their false convictions for the 1974 Birmingham pub bombings. Their convictions were declared unsafe and unsatisfactory and quashed by the Cou ...
, were refused parole for this reason. In 2005 the system changed, and began to parole prisoners who never admitted guilt. English law has no official means of correcting a "perverse" verdict (conviction of a defendant on the basis of insufficient evidence). Appeals are based exclusively on new evidence or errors by the judge or prosecution (but not the defence), or jury irregularities. A reversal occurred, however, in the 1930s when
William Herbert Wallace William Herbert Wallace (29 August 1878 – 26 February 1933) was an Englishman convicted in 1931 of the murder of his wife, Julia, in their home in Wolverton Street in Liverpool's Anfield district. Wallace's conviction was later overturned by the ...
was exonerated of the murder of his wife. There is no right to a trial ''without'' jury (except during the troubles in Northern Ireland or in the case where there is a significant risk of jury-tampering, such as organised crime cases, when a judge or judges presided without a jury). During the early 1990s, a series of high-profile cases turned out to be miscarriages of justice. Many resulted from police fabricating evidence to convict people they thought were guilty, or simply to get a high conviction rate. The
West Midlands Serious Crime Squad The West Midlands Serious Crime Squad was a police unit in the English West Midlands (county), West Midlands which operated from 1974 to 1989. It was disbanded after an investigation into allegations of incompetence and abuse of power on the pa ...
became notorious for such practices, and was disbanded in 1989. In 1997 the
Criminal Cases Review Commission The Criminal Cases Review Commission (CCRC) is the statutory body responsible for investigating alleged miscarriages of justice in England, Wales, and Northern Ireland. It was established by Section 8 of the Criminal Appeal Act 1995 and bega ...
was established specifically to examine possible miscarriages of justice. However, it still requires either strong new evidence of innocence, or new proof of a legal error by the judge or prosecution. For example, merely insisting on one's innocence, asserting the jury made an error, or stating there was not enough evidence to prove guilt, is not enough. It is not possible to question the jury's decision or query on what matters it was based. The waiting list for cases to be considered for review is at least two years on average. In 2002, the Northern Ireland Court of Appeal made an exception to who could avail of the right to a fair trial in ''R v Walsh'': ''"... if a defendant has been denied a fair trial it will almost be inevitable that the conviction will be regarded unsafe, the present case in our view constitutes an exception to the general rule. ... the conviction is to be regarded as safe, even if a breach of Article 6(1) were held to have occurred in the present case."'' (See
Christy Walsh (Case) John Christopher (Christy) Walsh, from west Belfast, was convicted in 1991 by a Diplock court of possessing explosives in connection with the conflict in Northern Ireland, and campaigned for 20 years to clear his name on the basis that his convic ...
.)


Scotland

The
Criminal Appeal (Scotland) Act 1927 Oscar Joseph Slater (8 January 1872 – 31 January 1948) was the victim of a miscarriage of justice in Scotland. Wrongly convicted of murder and sentenced to death, he was freed after almost two decades of hard labour at Scotland’s HM Prison ...
increased the jurisdiction of the
Scottish Court of Criminal Appeal The High Court of Justiciary is the supreme criminal court in Scotland. The High Court is both a trial court and a court of appeal. As a trial court, the High Court sits on circuit at Parliament House or in the adjacent former Sheriff Cou ...
following the miscarriage of justice surrounding the Trial of Oscar Slater. Reflecting Scotland's own legal system, which differs from that of the rest of the United Kingdom, the
Scottish Criminal Cases Review Commission The Scottish Criminal Cases Review Commission (SCCRC) is an executive non-departmental public body of the Scottish Government, established by the Criminal Procedure (Scotland) Act 1995 (as amended by the Crime and Punishment (Scotland) Act ...
(SCCRC) was established in April 1999. All cases accepted by the SCCRC are subjected to a robust and thoroughly impartial review before a decision on whether or not to refer to the
High Court of Justiciary The High Court of Justiciary is the supreme criminal court in Scotland. The High Court is both a trial court and a court of appeal. As a trial court, the High Court sits on circuit at Parliament House or in the adjacent former Sheriff Cou ...
is taken.


United States

In June 2012, the
National Registry of Exonerations The National Registry of Exonerations is a project of the University of Michigan Law School, Michigan State University College of Law and the University of California Irvine Newkirk Center for Science and Society. The Registry was co-founded in 2012 ...
, a joint project of the
University of Michigan Law School The University of Michigan Law School (Michigan Law) is the law school of the University of Michigan, a Public university, public research university in Ann Arbor, Michigan. Founded in 1859, the school offers Master of Laws (LLM), Master of C ...
and
Northwestern University Pritzker School of Law Northwestern University Pritzker School of Law is the law school of Northwestern University, a Private university, private research university. It is located on the university's Chicago campus. Northwestern Law has been ranked among the top 14, ...
, initially reported 873 individual exonerations in the U.S. from January 1989 through February 2012; the report called this number "tiny" in a country with 2.3 million people in prisons and jails, but asserted that there are far more false convictions than exonerations. By 2015, the number of individual exonerations was reported as 1,733, with 2015 having the highest annual number of exonerations since 1989. By 2019, the number had risen to 1,934 individuals. 20 individuals have been exonerated while on death row due to DNA evidence. According to a 2020 report by the National Registry of Exonerations, official misconduct contributed to 54% of all wrong convictions. The study only counted misconduct when it directly contributed to the convictions, such as the generation of false evidence or concealment of evidence of innocence. At least 21 states in the U.S. do not offer compensation for wrongful imprisonment. The
Innocence Project Innocence Project, Inc. is a 501(c)(3) nonprofit legal organization that is committed to exonerating individuals who have been wrongly convicted, through the use of DNA testing and working to reform the criminal justice system to prevent futur ...
works to exonerate people in the United States who have been wrongfully convicted of crime. It has estimated that 1 percent of all U.S. prisoners are innocent. With the number of incarcerated Americans being approximately 2.4 million, by that estimate as many as 20,000 people may be incarcerated as a result of wrongful conviction. Research into the issue of wrongful convictions have led to the use of methods to avoid wrongful convictions, such as
double-blind In a blind or blinded experiment, information which may influence the participants of the experiment is withheld until after the experiment is complete. Good blinding can reduce or eliminate experimental biases that arise from a participants' expec ...
eyewitness identification. Leading causes of wrongful convictions in the United States include snitches and unscientific forensics. Other causes include police and prosecutorial misconduct.
African Americans African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...
make up 13.6% of the U.S. population, but 53% of exonerations, as of August 2022.Wrongful convictions disproportionately affect Black Americans, report shows
/ref>


See also

*
Alford plea In United States law, an Alford plea, also called a Kennedy plea in West Virginia, an Alford guilty plea, and the Alford doctrine, is a guilty plea in criminal court, whereby a defendant in a criminal case does not admit to the criminal act and ...
*
Error of impunity An error of impunity is a lapse in the justice system that results in criminals either remaining at large or receiving sanctions that are below a socially optimal level. The term is used iBrian Forsts book ''Errors of Justice'' and in Robert Bohm's ...
*
False accusations A false accusation is a claim or allegation of wrongdoing that is untrue and/or otherwise unsupported by facts. False accusations are also known as groundless accusations or unfounded accusations or false allegations or false claims. They can occur ...
*
False allegation of child sexual abuse A false allegation of child sexual abuse is an accusation against one or more individuals claiming that they committed child sexual abuse when no abuse has been committed by the accused. Such accusations can be brought by the alleged victim, or by ...
*
False confession A false confession is an admission of guilt for a crime which the individual did not commit. Although such confessions seem counterintuitive, they can be made voluntarily, perhaps to protect a third party, or induced through coercive interrogat ...
*
Innocent prisoner's dilemma The innocent prisoner's dilemma, or parole deal, is a detrimental effect of a legal system in which admission of guilt can result in reduced sentences or early parole. When an innocent person is wrongly convicted of a crime, legal systems which n ...
*
Legal abuse {{Commonscat Articles that pertain, directly or indirectly, to improper use of the legal system, or to abuse ''by'' the legal system, or to allegations thereof. Law by issue Legal ethics Practice of law Sociology of law Lawsuits Abuse ...
*
Perverting the course of justice Perverting the course of justice is an offence committed when a person prevents justice from being served on themselves or on another party. In England and Wales it is a common law offence, carrying a maximum sentence of life imprisonment. Statu ...
*
Police misconduct Police misconduct refers to inappropriate conduct and illegal actions taken by police officers in connection with their official duties. Types of misconduct include among others: false confession, coerced false confession, intimidation, false arre ...
*
Presumption of guilt A presumption of guilt is any presumption within the criminal justice system that a person is guilty of a crime, for example a presumption that a suspect is guilty unless or until proven to be innocent. Such a presumption may legitimately aris ...


Specific cases

*
List of miscarriage of justice cases This is a list of miscarriage of justice cases. This list includes cases where a convicted individual was later cleared of the crime and either has received an official exoneration, or a consensus exists that the individual was unjustly punished ...
*
List of wrongful convictions in the United States This list of wrongful convictions in the United States includes people who have been legally exonerated, including people whose convictions have been overturned or vacated, and who have not been retried because the charges were dismissed by the s ...
*
List of exonerated death row inmates This list contains names of people who were found guilty of capital crimes and placed on death row but later found to be wrongly convicted. Many of these exonerees' sentences were overturned by acquittal or pardon, but some of those listed were ...


Notes and references


Further reading

* *
Jed S. Rakoff Jed Saul Rakoff (born August 1, 1943) is a Senior United States district judge of the United States District Court for the Southern District of New York. Education Rakoff was born in Philadelphia, Pennsylvania on August 1, 1943. He grew up in ...
, "Jailed by Bad Science", ''
The New York Review of Books ''The New York Review of Books'' (or ''NYREV'' or ''NYRB'') is a semi-monthly magazine with articles on literature, culture, economics, science and current affairs. Published in New York City, it is inspired by the idea that the discussion of i ...
'', vol. LXVI, no. 20 (19 December 2019), pp. 79–80, 85. According to Judge Rakoff (p. 85), "forensic techniques that in their origin were simply viewed as aids to police investigations have taken on an importance in the criminal justice system that they frequently cannot support. Their results are portrayed... as possessing a degree of validity and reliability that they simply do not have." Rakoff commends (p. 85) the U.S.
National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
recommendation to "creat an independent National Institute of Forensic Science to do the basic testing and promulgate the basic standards that would make forensic science much more genuinely scientific."


External links

* {{Miscarriage of Justice Justice Legal error Human rights Abuse of the legal system