64、77式手枪射击弹壳表面金属残留物的差异性探究  

Discussion on the Differences of Metal Residues on the Surface of 64 and 77 Type Pistol

作　　者：贾世鑫 刘馨璐 Jia Shi-xin;LiuXin-lu(Graduate School of People's Police University of China,Langfang,Hebei 065000 China;Nanjing Forest Police College,Nanjing,Jiangsu 210000 China)

机构地区：[1]中国人民警察大学,河北廊坊065000 [2]南京森林警察学院,江苏南京210000

出　　处：《西部公安论坛》2023年第1期63-68,共6页Journal of Western Public Security

摘　　要：随着公安工作中涉枪案件的逐渐增多,犯罪现场往往会遗留许多射击弹壳。由于64式、77式手枪所使用子弹的口径相同,单从子弹的口径无法认定嫌疑人所使用的手枪型号。本文利用X射线荧光能谱,分析不同型号手枪射击弹壳表面金属残留物的差异,以此来确定犯罪嫌疑人所使用手枪型号。研究发现,经64式、77式手枪射击和未射击的弹壳表面的铜、锌元素含量存在差异,这种差异为侦查人员检验涉枪案件中射击弹壳提供了新的方向。With the gradual increase of shooting cases in gun cases,many bullet casings are often left behind at crime scenes.Since the bullets used in the Type 64 and Type 77 pistols have the same caliber,the model of the pistol used by the suspect cannot be determined from the caliber of the bullet alone.In this paper,X-ray fluorescence energy spectroscopy is used to analyze the difference of metal residues on the surface of different types of pistol shell casings to determine the type of pistol used by the suspect.The study found that there are differences in the copper and zinc element content on the surface of the fired and unfired shell casings of Type 64 and Type 77 pistols.This difference provides a new direction for investigators to test shot shell casings in gun-related cases.

关 键 词：射击弹壳 X射线荧光能谱 金属残留物 

分 类 号：D91[政治法律—法学]