of Alcohol, Tobacco, Firearms and Explosives Forensic Science Laboratory in San Francisco process firearms evidence on a daily basis (p. 235). They start by looking for the presence of fingerprints. All components of the firearms are separated and placed in a Foster Freeman cyanoacrylate chamber at 80% humidity with hard evidence liquid glue (Pratt, 2012, p. 235, para. 1). The fumes from the chamber interact with the fingerprint residue, turning the friction ridges white. Rhodamine 6G is then applied…
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