Journal Published Online: 25 May 2005
Volume 50, Issue 4

Maintenance of the ENFSI Proficiency Test Program on Identification of GSR by SEM/EDX (GSR2003)



Within the framework of the ENFSI Expert Working Group “Firearms,” every second year, a proficiency test on the detection and identification of GSR by SEM/EDX is carried out. This proficiency test is a development and extension of the previous proficiency test GSR2001. The test material was again designed by the organization panel and manufactured by an external company for SEM accessories. This time the participating laboratories were requested to determine the total number of PbSbBa containing particles on a test sample following their own laboratory specific methods of automated GSR particle search and detection by SEM/EDX. One synthetic particle sample (SPS) with artificial GSR particles was dispatched to all participants. This paper summarizes the results of the study and assesses the overall performance of the participating laboratories. Furthermore an extended statistical evaluation and a comparison with previous studies was carried out.

Author Information

Niewoehner, L
Bundeskriminalamt, BKA, Forensic Science Institute, Wiesbaden, Germany
Andrasko, J
National Laboratory of Forensic Science, SKL, Linkoeping, Sweden
Biegstraaten, J
Netherlands Forensic Institute, NFI, Den Haag, The Netherlands
Gunaratnam, L
National Bureau of Investigation, NBI, Vantaa, Finland
Steffen, S
Tu Freiberg, Institute of Analytical Chemistry, Freiberg, Germany
Uhlig, S
QuoData GmbH, Dresden-Langebrueck, Germany
Pages: 6
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Stock #: JFS2004454
ISSN: 0022-1198
DOI: 10.1520/JFS2004454