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Laser-induced breakdown spectroscopy for the detection of gunshot residues on the hands of a shooter.
MedLine Citation:
PMID:  14594078     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Laser-induced breakdown spectroscopy (LIBS) 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 to identify. The error rates associated with the LIBS identification of a subject who fired one shot from a clean gun have been evaluated by Monte Carlo simulation techniques, and criteria are proposed for defining a positive or a negative test result.
Authors:
Christopher R Dockery; Scott R Goode
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  42     ISSN:  0003-6935     ISO Abbreviation:  Appl Opt     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-11-03     Completed Date:  2004-01-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6153-8     Citation Subset:  -    
Affiliation:
Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208, USA.
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