摘要
目的探索方形坡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增配痕迹的变化因素。方法用被增配过的原配钥匙和增配钥匙进行模拟开启实验,观察并记录开启前和开启过程中的增配痕迹。结果被增配钥匙的坡面上有明显的印压痕迹和擦划痕迹,增配痕迹随开启次数增加呈渐变性变化,且原配钥匙和增配钥匙上的增配痕迹变化不同。结论增配痕迹为印压痕迹和擦划痕迹,印压痕迹随着开启次数增加而逐渐消失,擦划痕迹较稳定。
Objective To explore the formation rules of marks on copied the sloping square-shaped teeth keys, the shading process of copied marks and change factors of copied keys. Methods Using copied keys to simulate opening experiments and examine the copied marks. Results The slope of copied key has obvious impression and scrape marks, copied marks gradually changed followed opening degree and the change is different between former keys and copied keys. Conclusion The copied marks are impression and scrape marks, impression fade away following the increase of opening times, but scrape marks is steady-state.
出处
《刑事技术》
2009年第6期10-12,共3页
Forensic Science and Technology
关键词
方形坡状齿钥匙
增配痕迹
渐变过程
sloping square-shaped teeth key
copied mark
shading process
