本论文以钢丝剪和断线钳剪切痕迹为研究对象,研究钢丝剪剪切多股线的铜线缆形成的痕迹和断线钳剪切多股线的铜线缆形成的痕迹,然后对两种工具剪切多股线形成的痕迹进行区别,从而判断是哪种工具形成的痕迹,帮助公安机关科学的分析案情,提供侦查线索、方向,缩小侦查范围有重要作用。 In this dissertation, the cutting traces of wire shears and bolt cutters are taken as the research object to study the trace of the formation of copper wire with multi-strand wires cut by wire shears and the traces of the copper wire cut by multi-strand wire cutters. Two tools to cut the traces of multi-strand wire to make a difference, to determine what kind of tool marks the formation of public security organs to help the scientific analysis of the case, to provide clues, direction and narrow the scope of the investigation has an important role.