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Forensics; Serial Numbers; Firearms (16706357512)

Forensics; Serial Numbers; Firearms (16706357512)

 
 
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Summary

For an experiment to recover serial numbers that have been destroyed, NIST researchers hand-stamped X imprints into stainless steel (first image) to simulate a firearm serial number. Then they polished away the imprints (second image, scale bar in millimeters). Researchers recovered the imprints (third image) by combining pattern quality maps, calculated by software, which reveal crystal damage and deformation in the steel.
See also www.nist.gov/mml/acmd/ebsd-021115.cfm
Credit: White/NIST
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Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST.
Use of NIST Information:

These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology (NIST). With the exception of material marked as copyrighted, information presented on these pages is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested.

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Date

15/01/2015
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Source

Forensics; Serial Numbers; Firearms
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