Pinchuk P V, Leonov S V, Sukhareva M A
N.I. Pirogov Russian National Research Medical University, Moscow, Russia.
Main State Center for Rorensic and Criminalistic Examininations, Moscow, Russia.
Sud Med Ekspert. 2023;66(3):10-13. doi: 10.17116/sudmed20236603110.
Aim of this study is to establish the distance and spacing of gunshot wound in the conditions of after-penetration target location. The experimental studies series on shooting coarse colico targets located behind a triplex (car windshield) with record of results by a high-speed camera with a frequency of 1000 frames per second, followed by a study of the affected targets by routine and modern methods (scanning electron microscopy and energy dispersion analysis) were performed. Established results showed that fragments of projectile that overcame an obstacle and secondary projectiles have a rather stable zoning distribution behind an obstacle at a distance up to 2.5 m from the obstacle. The most informative diagnosis of an after-penetration wound distance zone is based on the character of the firearm projectile fragments dispersion, manifestation of lead particles thermal exposure from its sleeve and secondary projectiles fragments formed under the effect of shock wave superimposement in the obstacle material.
本研究的目的是确定在穿透后目标位置条件下枪伤的距离和间距。进行了一系列实验研究，用每秒1000帧的高速摄像机记录向位于三层玻璃（汽车挡风玻璃）后的粗糙棉布靶射击的结果，随后用常规和现代方法（扫描电子显微镜和能量色散分析）对受影响的靶进行研究。既定结果表明，克服障碍物的弹丸碎片和二次弹丸在距障碍物2.5米范围内的障碍物后方具有相当稳定的分区分布。对穿透后伤口距离区域最具信息性的诊断基于枪械弹丸碎片的散布特征、其套筒中铅颗粒热暴露的表现以及在障碍物材料中冲击波叠加作用下形成的二次弹丸碎片。
