92式手枪射击距离与射击残留物分布密度相关性的研究  

Study on the relation between gunshot distance and gunshot residues distribution of 92 pistol

作　　者：徐晓玲[1] 贾春悦[1] 从者唐[2] 张宇[1] 田野[1] 

机构地区：[1]北京人民警察学院,102202 [2]北京市公安局刑事科学技术研究所,100054

出　　处：《刑事技术》2009年第3期6-9,共4页Forensic Science and Technology

摘　　要：目的研究92式手枪射击距离与射击残留物分布密度的相关性,为射击距离的推断提供依据。方法选择92式手枪,在带皮的猪肉上覆盖白色棉布,设计了0m,0.1m,0.2m,0.5m,1.0m,1.5m,3.0m,5.0m,10m,15.0m,20.0m,25.0m共12个距离进行射击,提取白棉布上的弹孔圆周和距弹孔2cm的圆周上的射击残留物,利用扫描电镜/能谱仪对不同射击距离遗留在白棉布上的射击残留物进行检验。结果白棉布上射击残留物分布密度与射击距离呈负相关的关系。结论根据棉布上射击残留物的分布密度,能够推断射击距离,对涉枪案件中射击距离的判断有一定的参考价值。Objective To explore the relation of gunshot distance and distribution of gunshot residues of 92-pistol. Method The white cotton fabric placed on a piece of pork was fired at 0 m, 0.1 m, 0.2 m, 0.5 m, 1.0 m, 1.5 m, 3.0 m, 5.0 m, 10 m, 15.0 m, 20.0 m, 25.0 m distance with 92-pistol. The gunshot residues around bullet hole on the white cotton fabric were investigated by SEM/EDS. Results There was a negative correlation between the density of gunshot residues and the gunshot distance. Conclusion The result is very useful to estimate the firing range in the gunshot cases.

关 键 词：射击残留物 射击距离 扫描电镜 能谱仪 92式手枪 

分 类 号：D918.91[政治法律—法学] D919.4[医药卫生—法医学]