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Laser-induced breakdown spectroscopy for the detection of gunshot residues on the hands of a shooter
Laser-induced breakdown spectroscopy ͑LIBS͒ has been used to determine whether the hands of a suspected gun user contain traces of gunshot residue. Samples are obtained by pressing adhesive tape against the skin of the suspect and analyzing the tape directly. When the suspect has fired multiple shots, or if the gun has not been cleaned, the gunshot residue provides a spectral signature that is readily apparent, but a person who has fired a single shot from a clean gun is not so easy todoi:10.1364/ao.42.006153 pmid:14594078 fatcat:tzyy6l3dbfehha3xp6nf3i3kle