Deep Dive: The science behind a shell casing

NIBIN is a database that contains two-dimensional and three-dimensional images of fired cartridge cases that have been gathered from crime scenes, as well as pictures of shell casings submitted by law enforcement officials who test fire guns collected into evidence.
National database gives leads, links crime scenes, and gets illegal guns off the street

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Features:, 100% brand new, HELLBOX Brand., Made by high quality PC+PET material., [IP68 Waterproof up to 50 feet] : Excellent waterproof performance

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Deep Dive: The science behind a shell casing

Page 11 - Evidence Inspection & Documentation - AFI-LLC Newsletter August 2021