Problems of Forensic Sciences 2001 Vol. 47 (XLVII) 380-386
EVALUATION OF PARAMETERS INFLUENCING GSR’S RETENTION ON SHOOTER’S HANDS
F. SCHÜTZ, M. S. BONFANTI, S. DESBOEUFS
Institute Forensic Science and Criminology, University of Lausanne, Lausanne, Switzerland
Streszczenie
Many articles were published in the literature dealing with the persistence of gunshot residue on shooter’s hands. This work studies different physical parameters characterising GSR particles such as shape, dimensions and nature, in order to determine each factor’s influence on the retention of GSRon shooter’s hands. The present study uses the results obtained by shooting with the same weapon (a SIG Sauer semi-automatic pistol, model P220, caliber 9 mm Parabellum) and three different types of ammunition (Geco Sinoxid, Geco Sintox and Winchester Super-X). The GSR were collected from the shooter’s hands with gold coated polycarbonate membrane filters; these filters were then examined using a SEM coupled with an energy dispersive X-ray spectrometer. Interpretation of results allows the extraction of predictive findings and/or exclude alleged circumstances.
Słowa kluczowe
Transfer; Persistence; GSR; Data interpretation.