警用9毫米转轮手枪在汽车钢板上射击残留物的扫描电镜能谱分析  

Analysis of Gun Shoot Residues of Police 9mm Revolver on Automobile Sheet Metal by Using Scanning Electron Microscopy and Energy Spectrum

作　　者：李浩[1] 何洋[2] 

机构地区：[1]南京森林警察学院刑事科学技术系,江苏南京210046 [2]广西警察学院侦查系,广西南宁530023

出　　处：《公安海警学院学报》2015年第4期17-22,共6页Journal of China Maritime Police Academy

基　　金：2015年江苏省高等教育教改课题(No:2015JSJG195)

摘　　要：本研究选用国产2005式9毫米警用转轮手枪及普通子弹,以不同距离对汽车钢板进行试射,分别从贴近弹孔边缘处、弹孔周围油漆脱落与未脱落处、射出口花瓣内侧采集射击残留物(GSR),利用扫描电子显微镜/X射线能谱仪分析法(SEM/EDX)观察射击残留物微粒形态并分析元素组成,结果发现以SEM/EDX进行射击残留物的微粒分析,可以确认疑似孔洞是否为弹孔,也可根据残留物微粒分布密度推断射击距离,对涉枪案的检验有一定参考价值。This research chooses 2005 9mm police revolver and bullets, shooting in different distance to test of automobile steel plate. Form close to the hole edge, bullet holes around the paint chipped off with sampling, export petals inside to find gun shoot residues(GSR).Using a scanning electron microscope/X-ray spectrometer analysis(SEM/EDX) observe shooting remnants of particle morphology and analyze elements. It is found that the firing residue particle analysis by SEM/EDX can confirm suspected holes for the bullet hole. According to the residual particles distribution density inference shooting distance, the gun has certain reference value for the judgment of the case.

关 键 词：警用转轮手枪 汽车钢板 射击残留物微粒 SEM/EDX分析法 

分 类 号：D918.93[政治法律—法学]