七种9mm手枪射击弹壳的痕迹研究
吕晓森
1
, 田富睿
1
, 刘思冶
2
Marks on Cartridge Cases Shot from Seven-kind 9mm Pistols and Their Forensic Value
LÜ Xiaosen
1
, TIAN Furui
1
, LIU Siye
2
NP22手枪的射击弹壳痕迹(a:击针头痕迹;b:抛壳挺痕迹;c:抱壳槽痕迹;d:拉壳钩痕迹;e:弹匣口刮擦痕迹)