New technology to link cartridge cases to guns by engraving microscopic codes on the firing pin is feasible, but did not work equally well for all guns and ammunition tested in a pilot study by researchers from the forensic science program at UC Davis. Microstamping technology uses a laser to cut a pattern or code into the head of a firing pin or another internal surface.
Original Article: Firearms Microstamping Feasible But Variable, Study Finds
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