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Microstamping
Microstamping is a proprietary ballistics identification technology. Microscopic markings are engraved onto the tip of the firing pin and onto the breech face of a firearm with a laser. When the gun is fired, these etchings are transferred to the primer by the firing pin and to the cartridge case head by the breech face, using the pressure created when a round is fired. After being fired, if the cases are recovered by police, the microscopic markings imprinted on the cartridges can then be examined by forensic ballistics experts to help trace the firearm to the last registered owner."Cracking the Case: The Crime Solving Promise of Ballistics Identification." Educational Fund to Stop Gun Violence Report on Microstamping, 2004Report/ref> A California law requiring the use of microstamping technology in all new semiautomatic firearms sold in the state has attracted controversy. Legal jurisdictions in the United States California Microstamping legislation was passed in California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Assembly Bill 1471 (2007)
AB 1471 or AB 1471 Crime Gun Identification Act of 2007 is legislation passed by the California State Senate on September 6, 2007, and then by the California State Assembly on September 10, 2007, with votes of 21–17 and 43–29 respectively. It was then signed into law by Governor Arnold Schwarzenegger on October 13, 2007, becoming the first legislation of its kind to enact microstamping of firearms. Its implementation was then placed on hold. The hold was lifted in 2013. California's "unsafe firearm" laws, which include AB 1471, do not apply to any firearms used or purchased by any law enforcement agency. Purpose AB 1471 changes California definitions of "unsafe handgun" and also requires that: "7) Commencing January 1, 2010, for all semiautomatic pistols that are not already listed on the roster pursuant to Section 12131, it is not designed and equipped with a microscopic array of characters that identify the make, model, and serial number of the pistol, etched or otherwise i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 accelerating projectiles so as to achieve a desired performance. A ballistic body is a free-moving body with momentum which can be subject to forces such as the forces exerted by pressurized gases from a gun barrel or a propelling nozzle, normal force by rifling, and gravity and air drag during flight. A ballistic missile is a missile that is guided only during the relatively brief initial phase of powered flight and the trajectory is subsequently governed by the laws of classical mechanics; in contrast to (for example) a cruise missile which is aerodynamically guided in powered flight like a fixed-wing aircraft. History and prehistory The earliest known ballistic projectiles were stones and spears, and the throwing stick. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporting Arms And Ammunition Manufacturers Institute
The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several American National Standards that provide safety, reliability, and interchangeability standards for commercial manufacturers of firearms, ammunition, and components. In addition, SAAMI publishes information on the safe and responsible transportation, storage, and use of those products. History The origins of SAAMI date back to World War I and the Society of American Manufacturers of Small Arms and Ammunition (SAMSAA). In 1913, the US War Department encouraged the firearms and ammunition industry to establish an organization to share new technology and establish common standards for small arms and ammunition. SAMSAA was officially formed in 1918, however became inactive by the early 1920s. By the mid-1920s the United States was still suffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firearm Laws
Gun laws and policies, collectively referred to as firearms regulation or gun control, regulate the manufacture, sale, transfer, possession, modification, and use of small arms by civilians. Laws of some countries may afford civilians a right to keep and bear arms, and have more liberal gun laws than neighboring jurisdictions. Countries that regulate access to firearms will typically restrict access to certain categories of firearms and then restrict the categories of persons who may be granted a license for access to such firearms. There may be separate licenses for hunting, sport shooting ( target shooting), self-defense, collecting, and concealed carry, with different sets of requirements, permissions, and responsibilities. Gun laws are often enacted with the intention of reducing the use of small arms in criminal activity, specifying weapons perceived as being capable of inflicting the greatest damage and those most easily concealed, such as handguns and other short-barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HighBeam Research
HighBeam Research was a paid search engine and full text online archive owned by Gale, a subsidiary of Cengage, for thousands of newspapers, magazines, academic journals, newswires, trade magazines, and encyclopedias in English. It was headquartered in Chicago, Illinois. In late 2018, the archive was shut down. History The company was established in August 2002 after Patrick Spain, who had just sold Hoover's, which he had co-founded, bought eLibrary and Encyclopedia.com from Tucows. The new company was called Alacritude, LLC (a combination of Alacrity and Attitude). ELibrary had a library of 1,200 newspaper, magazine and radio/TV transcript archives that were generally not freely available. Original investors included Prism Opportunity Fund of Chicago and 1 to 1 Ventures of Stamford, Connecticut. Spain stated, "There was a glaring gap between free search like Google and high-end offerings like LexisNexis and Factiva." Later in 2002, it bought Researchville.com. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oakland Police Department
The Oakland Police Department (OPD) is a law enforcement agency responsible for policing the city of Oakland, California, United States. As of May 2021, the department employed 709 sworn officers and 371 civilian employees. The department is divided into 5 geographical divisions policing Oakland's 78 square miles and population of 420,000. The OPD receives 550,000 annual calls for service, and responds to over 250,000 law enforcement incidents. History The Oakland Police Department was formed in 1853 by Oakland founder and first Mayor Horace W. Carpentier. Oakland had been incorporated as a town by the state legislature in 1852, and with its rapid expansion, Carpentier felt the need to organize a city government with a police force to provide regular law enforcement. Heretofore, vigilante justice had been the norm. On October 15, 1853, the town council appointed John McCann as the first town marshal, assisted by two deputies and operating out of a small waterfront building which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forensic Firearm Examination
Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene. Specialists in this field try to link bullets to weapons and weapons to individuals. They can raise and record obliterated serial numbers in an attempt to find the registered owner of a weapon and look for fingerprints on a weapon and cartridges. By examining unique striations impressed into a bullet from the barrel of a gun, expended ammunition can be linked back to a specific weapon. These striations are due to the rifling inside the barrels of firearms. Rifling spins the bullet when it is fired out of the barrel to improve precision. Although bullet striations are individualized unique evidence, microscopic striations in the barrel of the weapon are subject to change slightly, after each round that is fired. For this reason, forensic ballistics examiners may not fire more than five shots from a weapon found at a scene. Known exemplars ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States National Research Council
The National Academies of Sciences, Engineering, and Medicine (also known as NASEM or the National Academies) are the collective scientific national academy of the United States. The name is used interchangeably in two senses: (1) as an umbrella term for its three quasi-independent honorific member organizations the National Academy of Sciences (NAS), the National Academy of Engineering (NAE), and the National Academy of Medicine (NAM); and (2) as the brand for studies and reports issued by the operating arm of the three academies, the National Research Council (NRC). The NRC was first formed in 1916 as an activity of the NAS. Now jointly governed by all three academies, the NRC produces some 200 publications annually which are published by the National Academies Press. The reports produced by the National Academies have been characterized as reflective of scientific consensus. History The US National Academy of Sciences was created by an Act of Incorporation dated March 3, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Kennedy
Edward Moore Kennedy (February 22, 1932 – August 25, 2009) was an American lawyer and politician who served as a United States senator from Massachusetts for almost 47 years, from 1962 until his death in 2009. A member of the Democratic Party and the prominent political Kennedy family, he was the List of United States Senators in the 111th Congress by seniority, second most senior member of the Senate when he died. He is List of members of the United States Congress by longevity of service#Senate time, ranked fifth in United States history for length of continuous service as a senator. Kennedy was the younger brother of President John F. Kennedy and U.S. attorney general and U.S. senator Robert F. Kennedy. He was the father of United States House of Representatives, Congressman Patrick J. Kennedy. After attending Harvard University and earning his law degree from the University of Virginia, Kennedy began his career as an assistant district attorney in Suffolk County, Mas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xavier Becerra
Xavier Becerra ( ; ; born January 26, 1958) is an American lawyer and politician serving as the 25th United States secretary of health and human services since March 2021. Becerra previously served as the attorney general of California from January 2017 until March 2021. He was a member of the United States House of Representatives, representing Downtown Los Angeles in Congress from 1993 to 2017. A member of the Democratic Party, Becerra was Chairman of the House Democratic Caucus from 2013 to 2017. Born in Sacramento, California, Becerra graduated from Stanford University and received his Juris Doctor degree from Stanford Law School. He worked as a lawyer at the Legal Assistance Corporation of central Massachusetts, before returning to California in 1986 to work as an administrative assistant for state senator Art Torres. He served as a deputy attorney general in the California Department of Justice from 1987 to 1990 before he was elected to the California State Assembly, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Shooting Sports Foundation
The National Shooting Sports Foundation (NSSF) is an American national trade association for the firearms industry that is based in Newtown, Connecticut. Formed in 1961, the organization has more than 8,000 members: firearms manufacturers, distributors, retailers, shooting ranges, sportsmen's clubs and media.The History of The National Shooting Sports Foundation (NSSF) NSSF.org, Retrieved December 20, 2012. The NSSF mission is "To promote, protect and preserve hunting and the shooting sports". In addition to promoting gun ownership, the NSSF helps write safety and instruction standards.Rawlings, Nate [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firing Pin
A firing pin or striker is a part of the firing mechanism of a firearm that impacts the primer in the base of a cartridge and causes it to fire. In firearms terminology, a striker is a particular type of firing pin where a compressed spring acts directly on the firing pin to provide the impact force rather than it being struck by a hammer. The terms may also be used for a component of equipment or a device which has a similar function. Such equipment or devices include: artillery, munitions and pyrotechnics. Firearms The typical firing pin is a thin, simple rod with a hardened, rounded tip that strikes and crushes the primer. The rounded end ensures the primer is indented rather than pierced (to contain propellant gasses). It sits within a hole through the breechblock and is struck by the hammer when the trigger is "pulled". A light firing-pin spring is often used to keep the firing pin rearward. It may be termed a ''firing-pin return spring'', since it returns it t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
