小口径运动枪射击残留物的微观形态研究

Microscopic Morphology Analysis of Residue in Small Caliber Sport Guns

摘要: 本实验采用扫描电子显微镜对案件中收集的小口径运动枪射击残留物颗粒进行微观形态研究，根据微观形态特征进行分类，并与普通制式手枪的射击残留物进行比较。研究结果可以为涉枪案件中射击残留物的鉴定发挥作用，初步鉴定出其是否来自小口径运动枪或由小口径运动枪改装的枪支，给案件的侦查提供思路和方向。

Abstract: Scanning electron microscopy (SEM) was used to analyze the microscopic morphology residue in small caliber sport guns. The difference between small caliber motion gun and ordinary standard pistol was found by analyzing its microstructure. At the same time, shooting debris particles of small caliber sport pistol of different types were classified, and the characteristics of different types of small caliber gun were summarized. The results of the study will help the police quickly identify whether the source of the gunshot residue is from a small caliber gun or whether it comes from a gun reformed by a small caliber gun, providing the direction for the investigation of the case.