Niewoehner Ludwig, Andrasko Jan, Biegstraaten Jan, Gunaratnam Lawrence, Steffen Sylvia, Uhlig Steffen
Bundeskriminalamt, BKA, Forensic Science Institute, D-65173 Wiesbaden, Germany.
J Forensic Sci. 2005 Jul;50(4):877-82.
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.
在欧洲法医科学研究所（ENFSI）“枪支”专家工作组的框架内，每两年会进行一次关于通过扫描电子显微镜/能量色散X射线光谱仪（SEM/EDX）检测和识别枪击残留物（GSR）的能力验证测试。该能力验证测试是之前GSR2001能力验证测试的发展和延伸。测试材料再次由组织小组设计，并由一家外部公司制造用于SEM配件。此次要求参与实验室按照各自实验室特定的通过SEM/EDX自动搜索和检测GSR颗粒的方法，确定测试样品上含铅（Pb）、锑（Sb）、钡（Ba）颗粒的总数。向所有参与者发送了一个含有人工GSR颗粒的合成颗粒样品（SPS）。本文总结了该研究的结果，并评估了参与实验室的整体表现。此外，还进行了扩展的统计评估以及与先前研究的比较。
