Volume 46, Issue 4 (July 2001)

    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)

    (Received 13 April 2000; accepted 29 August 2000)

    CODEN: JFSOAD

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    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 ×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.


    Author Information:

    Kaizoji, A
    Forensic chemist, technical examiner, technical examiner, and forensic chemist, Forensic Science Laboratory, Fukuoka Prefectural Police Hedquarters, Fukuoka,

    Ikeda, H

    Ryumoto, J-i
    Forensic chemist, technical examiner, technical examiner, and forensic chemist, Forensic Science Laboratory, Fukuoka Prefectural Police Hedquarters, Fukuoka,

    Kudo, K
    Lecturer, guest researcher, and professor, Graduate School of Medical Sciences, Kyushu University, Fukuoka,

    Ikeda, N
    Lecturer, guest researcher, and professor, Graduate School of Medical Sciences, Kyushu University, Fukuoka,

    Kage, S
    Forensic chemist, technical examiner, technical examiner, and forensic chemist, Forensic Science Laboratory, Fukuoka Prefectural Police Hedquarters, Fukuoka,


    Stock #: JFS15054J

    ISSN: 0022-1198

    DOI: 10.1520/JFS15054J

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    Title 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)
    Symposium , 0000-00-00
    Committee E30