本文探讨火灾现场痕迹图痕对起火原因调查的作用,分析了火灾现场中“V”形痕迹的形成原因和对确定起火部位及起火点的作用,得出一般情况下“V”性痕迹的底部即为起火点的结论,该部位的燃烧残留物及燃烧残渣是需要提取的关键检材。 This paper discusses the effect of trace marks on the cause of fire and analyzes the causes of the “V” shape marks on the fire scene and its role in determining the fire part and ignition point. It is concluded that under normal circumstances, “V” The bottom of the trace is the conclusion of the ignition point. The combustion residues and combustion residues in this area are the key samples that need to be extracted.