使用EvoFinder®连续制造的Glock射击手桶的客观评估
Jack McKeon1, Erich Smith1, Rachael Gominsky1
1FBI Laboratory, Firearms/Toolmarks Unit, Quantico, Virginia, USA.
Journal of forensic sciences
|March 13, 2026
概括
格洛克狙击手桶 (GMB) 具有一个新的轨道部件. 这项研究发现,GMB轨道上的子类携带不会在枪支识别中引起错误阳性,从而确保可靠的工具标记分析.
科学领域:
- 法医科学 法医科学 法医科学
- 枪支检查 枪支检查 枪支检查
- 制造过程 制造过程 制造过程
背景情况:
- 格洛克狙击手桶 (GMBs) 在他们的多边形步枪中包含了一个额外的轨道组件.
- 这一创新引发了枪支检查人员关于其对识别准确性的影响的辩论.
研究的目的:
- 调查转基因生物的制造,特别关注子类特征和条纹变异.
- 为了确定添加的轨道部件是否有助于或阻碍枪支检查人员进行微观比较.
主要方法:
- 关于GMB制造的信息是从Glock工程师那里收集的.
- 从连续制造的GMB中对造物的显微镜评估确定了由于子类转移而导致的重复模式.
- 10个连续制造的GMB发射的子弹的工具标记表面被扫描到EvoFinder®系统中进行客观分析.
主要成果:
- 在GMB轨道上观察到重复的模式,归因于门制造和子类转载.
- 使用EvoFinder®系统进行的客观评估表明,子类转移不会阻碍子弹到桶的分配.
- 在得分中包含N-max标准使得分布完全分离,证实了可靠的识别.
结论:
- 在GMB轨道上的子类携带不会导致枪支识别中的错误阳性.
- 额外的轨道组件不会妨碍,而且可能有助于检查人员进行微观比较.
- 这项研究证实了GMB在法医枪支检查中的可靠性.
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