断线钳和手持式液压钳的破坏痕迹在案件现场常出现,且具有特定的痕迹特点,研究这两种工具的形成痕迹特点及其区别有助于侦查破案,因此是十分必要的。本文主要基于工具痕迹检验的理论和方法,结合案件现场钳剪痕迹的特点,通过分析断线钳和手持式液压钳的破坏能力、分析两种工具的留痕特点和区别,为案件现场的钳剪痕迹的检验提供方法,为侦查破案提供依据。 Broken pliers and hand-held hydraulic pliers, the destruction of the scene often appear in the scene, and has a specific characteristics of the traces, the formation of traces of these two tools and their characteristics to help detect the detection of cases, it is very necessary. In this paper, based on the theory and method of tool mark inspection, combined with the characteristics of the scene of the pliers cuttings, by analyzing the breaking capacity of the bolt cutters and hand-held hydraulic pliers, the characteristics and differences of the two tools are analyzed. Shear traces of testing methods to provide the basis for detection of cases of detection.