A simple method for detection of gunshot residue particles from hands, hair, face,and clothing using scanning electron microscopy/wavelength dispersive X-ray (SEM/WDX)

S. Kage, K. Kudo, A. Kaizoji, J. Ryumoto, H. Ikeda, N. Ikeda

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

We devised a simple and rapid method for detection of gunshot residue (GSR) particles, using scanning electron microscopy/wavelength dispersive X-ray (SEM/WDX) analysis. Experiments were done on samples containing GSR particles obtained from hands, hair, face, and clothing, using double-sided adhesive coated aluminum stubs (tape-lift method). SEM/WDX analyses for GSR were carried out in three steps; the first step was map analysis for barium (Ba) to search for GSR particles from lead styphnate primed ammunition, or tin (Sn) to search for GSR particles from mercury fulminate primed ammunition. The second step was determination of the location of GSR particles by X-ray imaging of Ba or Sn at a magnification of X 1000-2000 in the SEM, using data of map analysis, and the third step was identification of GSR particles, using WDX spectrometers. Analysis of samples from each primer of a stub took about 3 h. Practical applications were shown for utility of this method.

Original languageEnglish
Pages (from-to)830-834
Number of pages5
JournalJournal of Forensic Sciences
Volume46
Issue number4
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Genetics

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