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A study of transfer and prevalence of organic gunshot residues.

  • Hofstetter C Institut de Police Scientifique, University of Lausanne, Batochime, 1015 Lausanne, Switzerland.
  • Maitre M Centre for Forensic Science, University of Technology Sydney,PO Box 123 Broadway, Sydney, NSW 2007, Australia.
  • Beavis A Centre for Forensic Science, University of Technology Sydney,PO Box 123 Broadway, Sydney, NSW 2007, Australia.
  • Roux CP Centre for Forensic Science, University of Technology Sydney,PO Box 123 Broadway, Sydney, NSW 2007, Australia.
  • Weyermann C Institut de Police Scientifique, University of Lausanne, Batochime, 1015 Lausanne, Switzerland.
  • Gassner AL Institut de Police Scientifique, University of Lausanne, Batochime, 1015 Lausanne, Switzerland. Electronic address: Anne-Laure.GassnerPerruche@unil.ch.
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  • 2017-07-09
Published in:
  • Forensic science international. - 2017
Distribution
Firearm discharge residues
Firearms
LC–MS
Stubs
English The main goal of the present study was to determine the amounts and distribution of organic gunshot residues (OGSR) on the shooter's upper body and clothing after discharging a pistol. A preliminary study was also performed to evaluate the prevalence of OGSR in the general population as well as in a police laboratory environment. In the transfer study, results indicated that OGSR are not only transferred to the hand of the shooter, but also to other parts of the upper body. Thus, wrists and forearms also represent interesting targets as they are washed less frequently than hands. Samples from the face and hair of the shooters resulted in no OGSR detection just after firing. It was also observed that the concentrations recovered from clothing are generally higher compared to the same skin area. Prevalence in both general (n=27) and police populations (n=25) was low. No OGSR was detected in the samples from the general population and only two samples from the police population were found positive.
Language
  • English
Open access status
green
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https://sonar.ch/global/documents/100131
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