月牙槽状齿钥匙增配痕迹的实验研究  

Experimental Research on Copied Mark of Crescent Groove Shaped Teeth Key

作　　者：马元元[1,2] 陶巧卒 陈薇[2] 

机构地区：[1]山东政法学院山东省高校证据鉴识重点实验室,山东济南250014 [2]重庆市公安局刑警总队,重庆400021 [3]重庆市北碚区公安分局,重庆400700

出　　处：《中国司法鉴定》2015年第2期58-60,共3页Chinese Journal of Forensic Sciences

基　　金：山东省高校证据鉴识重点实验室(山东政法学院)开放基金资助项目[KFKT(SUPL)-201414]

摘　　要：目的探索月牙槽状齿钥匙增配痕迹形成规律、增配痕迹随开启次数的渐变过程以及影响增配痕迹的变化因素。方法用被增配过的原配钥匙进行模拟开锁实验,观察并记录开启前和开启过程中的增配痕迹。结果被增配钥匙的齿面上有明显的磕碰痕迹和擦划痕迹,增配痕迹随开启次数增加呈渐变性变化,且不同区域的增配痕迹变化不同。结论月牙槽状齿钥匙的被增配痕迹为磕碰痕迹和擦划痕迹,齿槽壁上的被增配痕迹随着开启次数增加较稳定。Objective To explore the formation of copied marks when copying the crescent groove-shaped teeth keys, their changes with the times of using, and the influence factors. Method Unlocking experiment was carried out with the copied keys, and the copied marks were recorded before and after unlocking. Results The surface of the key＇s teeth had obvious bump and scrape marks. Copied marks gradually changed with the times of using, and varied in different regions. Conclusion The copied marks on crescent groove-shaped teeth keys are mainly bump and scrape marks. The copied marks on the wall of teeth groove increase with the unlocking times, and are relatively steady.

关 键 词：月牙槽状齿钥匙 增配痕迹 渐变过程 

分 类 号：DF794.1[政治法律—诉讼法学]