Английская Википедия:Gun serial number

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Файл:Pistol serial number.png

The serial number of this pistol is located under the dust cover on the frame, on the barrel, and on the slide.

Файл:Arisaka Type 99 bolt.jpg

The bolt of an Arisaka military rifle, which carries identifiers matching the main serial number which is on the receiver

A gun serial number is a unique identifier assigned to a singular firearm.Шаблон:Efn-ua

There is no international uniformity in gun serial numbers. Besides a widespread numerical base, they may contain letters and other typographical symbols, or may consist entirely of a character string; positioning and form of such identifiers is idiosyncratic.

The legal requirement for affixing a serial number to firearms is a relatively recent requirement, and usually applies to firearms manufactured domestically or which are imported. Gun serial numbers are used in gun registration and are usually linked to an owner who is usually required to hold a firearms license. In the US, federal law requires registered gun dealers to maintain records of gun serial numbers and then to report them when they are sold but federal law also prohibits creation of a national register.Шаблон:Sfn Another form of serial number is microstamping, where the firing pin and breach face are engraved to create unique markings on the ejected cartridge; this is a legal requirement for handguns in the state of California. It should also be noted that microstamping technology does not exist at this time, making it impossible to use on handgunsШаблон:Citation Needed.

Firearms without a serial number are commonly called unmarked firearms. Firearms with removed serial numbers are generally illegal. There are forensic techniques for recovering serial numbers after they have been removed.Шаблон:Sfn

History

Most individual manufacturers habitually put serial numbers on the weapons they produce. Such numbers can be used to ascertain the name of the manufacture, place and date of manufacture. At least for some manufacturers, a serial number can unlock myriad details about the weapon.Шаблон:Sfn An example is the Winchester Repeating Arms Company; their records may not be complete. As they note:

There are many "legends" about why the historic serial number records for Winchester rifles and shotguns are not complete or why they are not always verifiable. A few reasons cited are:

1. A fire at the factory
2. Inadvertent destruction (during office cleaning)
3. Records simply lost in filing
4. Records misplaced between ownership transitions
5. Documents borrowed but not returned

There is probably some kernel of truth to all of them. But the fact remains; there is no original, single, totally accurate database of serial numbers from 1866 forward that we are aware of. But perhaps these pages can help you somewhat in your research.

Other manufacturers maintain similar databases.

In the United States, the Gun Control Act of 1968 was prompted by the assassination of U.S. President John F. Kennedy in 1963. Congressional hearings followed and a ban on mail-order gun sales was discussed, but no law was passed until 1968. Precursors of the passage of the Gun Control Act were Senate Bill 1975 in 1963, "A Bill to Regulate the Interstate Shipment of Firearms," and Senate Bill 1592 in 1965, "A Bill to Amend the Federal Firearms Act of 1938." Both were introduced by Senator Thomas J. Dodd and met with fierce opposition on the floor but the bills also paved the way for the creation of the Gun Control Act of 1968.

The basic point of such legislation is that the weapon will plainly have a unique identifier. Thus, for example, an importer is expressly forbidden from recycling numbers. "Factory-produced firearms bear serial numbers." So factory producers and federally licensed gun dealers are required by U.S. law to maintain records for their inventory of serial numbers of all firearms and to report both the guns' serial numbers and the purchasers' names.Шаблон:SfnШаблон:Sfn

In most jurisdictions, an application for firearm registration requires a recitation of a particular weapon's serial number. Sales of firearms that are required to be reported have a similar requirement.Шаблон:Efn-ua

Homemade firearms in the United States are not legally required to have a serial number. However, they have useful value. "[A]lthough markings are not required on firearms manufactured for personal use (excluding NFA firearms)Шаблон:Efn-ua owners are recommended to conspicuously place or engrave a serial number and/ or other marks of identification to aid in investigation or recovery by State or local law enforcement officials in the event of a theft or loss of the privately owned firearm."

Methods of marking

Techniques for marking the serial number and other identifying details on the gun include:Шаблон:Sfn

• dot matrix peening
• engraving using a machine tool
• laser engraving
• roller marking
• stamping or pressing

Dimensions and details

In the US, manufacturers and importers are required to place identifiers on firearms. The dimensions of the serial number and other identifying details were codified in 2002 in section 27, part 478.92 of the Code of Federal Regulations:

... legibly identify each firearm manufactured or imported as follows:

i. By engraving, casting, stamping (impressing), or otherwise conspicuously placing or causing to be engraved, cast, stamped (impressed) or placed on the frame or receiver thereof an individual serial number. The serial number must be placed in a manner not susceptible of being readily obliterated, altered, or removed, and must not duplicate any serial number placed by you on any other firearm. For firearms manufactured or imported on and after January 30, 2002, the engraving, casting, or stamping (impressing) of the serial number must be to a minimum depth of .003 inch and in a print size no smaller than 1/16 inch; and

ii. By engraving, casting, stamping (impressing), or otherwise conspicuously placing or causing to be engraved, cast, stamped (impressed) or placed on the frame, receiver, or barrel thereof certain additional information. This information must be placed in a manner not susceptible of being readily obliterated, altered, or removed. For firearms manufactured or imported on and after January 30, 2002, the engraving, casting, or stamping (impressing) of this information must be to a minimum depth of .003 inch. The additional information includes:

A. The model, if such designation has been made;

B. The caliber or gauge;

C. Your name (or recognized abbreviation) and also, when applicable, the name of the foreign manufacturer;

D. In the case of a domestically made firearm, the city and State (or recognized abbreviation thereof) where you as the manufacturer maintain your place of business; and

E. In the case of an imported firearm, the name of the country in which it was manufactured and the city and State (or recognized abbreviation thereof) where you as the importer maintain your place of business. For additional requirements relating to imported firearms, see Customs regulations at 19 CFR part 134.Шаблон:Sfn

See also

• Automated firearms identification
• Brady Handgun Violence Prevention Act
• Forensic firearm examination
• Federal Assault Weapons Ban
• Gun law in the United States
• Gun politics in the United States
• Microstamping
• Right to keep and bear arms

References

Bibliography

• Шаблон:Cite book
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• Шаблон:Citation

Further reading

• Шаблон:Cite patent
• Belanger, Rene M., Daniel S. Jones, Sylvain Lagace, Michael McLean, and Homero A. Yasquez. "Method and system for identification of firearms." U.S. Patent Application 12/056,660, filed January 29, 2009.
• Шаблон:Cite journal
• Шаблон:Cite journal
• Шаблон:Cite journal
• Шаблон:Cite book
• Шаблон:Cite journal
• Hargarten, Stephen W., Trudy A. Karlson, Mallory O'Brien, Jerry Hancock, and Edward Quebbeman. "Characteristics of firearms involved in fatalities." Jama 275, no. 1 (1996): 42-45.
• Leslie, Dennis. "Method and apparatus for detecting and identifying firearms." U.S. Patent Application 11/068,259, filed December 1, 2005.
• Lizotte, Todd E. "Method and apparatus for reading firearm microstamping." U.S. Patent 6,833,911, issued December 21, 2004.
• Maiden, Nicholas R. (2009) "Serial number restoration: Firearm." Wiley Encyclopedia of Forensic Science. (Portsmouth, United Kingdom: John Wiley & Sons) Шаблон:ISBN.
• Maynard, Philip, Kyle Skinner, Matthew Bolton, and Sébastien Moret. "Potential application of liquid dye penetrants for serial number restoration on firearms." Australian Journal of Forensic Sciences 51, no. 6 (2019): 674-684.
• Mongan, A. L. "Visualization of a restored serial number using scanning electron microscopy (SEM)." Journal of Forensic Sciences 41, no. 6 (1996): 1074-1076.
• Nichols, Ronald G. "Firearm and toolmark identification criteria: A review of the literature." Journal of Forensic Sciences 42, no. 3 (1997): 466-474.
• Polk, D. E., and B. C. Giessen. "A new serial number marking system applicable to firearms identification." Journal of Forensic Sciences 20, no. 3 (1975): 501-506.
• Uysal, Serdar, Mustafa Mercan, and Lokman Uzun. "Serial number restoration on polymer surfaces: A survey of recent literature." Forensic Chemistry 20 (2020): 100267.
• Warrier, Varsha, and Rutwik Shedge. "Advances in firearm serial number restoration." The Official Publication of Indian Academy of Forensic Medicine 42, no. 1 (2020): 75-76 Indian Academy of Forensic Medicine.
• White, Ryan M., and Robert R. Keller. "Restoration of firearm serial numbers with electron backscatter diffraction (EBSD)." Forensic Science International 249 (2015): 266-270.