原始火灾现场是指火灾发生后被焚烧物质留下的原始状态,是公安机关分析火灾原因、计算火灾损失,确定案情性质的重要依据。因此,保护好火灾原始现场,对于公安机关开展火灾调查工作十分重要。但是,我们在调查火灾原因的时候,经常遇到火灾现场遭到破坏的现象,有的甚至面目全非,从而影响火灾原因的调查,例如:1987年11月28日,南昌市郊区青云浦乡城南村一 The original scene of the fire is the original state left behind by the incineration material after the fire and is an important basis for the public security organ to analyze the causes of the fire, calculate the fire losses and determine the nature of the case. Therefore, it is very important for the public security organ to carry out fire investigation to protect the original fire scene. However, when we investigated the causes of the fire, we often encountered the scene of the fire being destroyed. Some even went wrong with the investigation, which affected the investigation of the causes of the fire. For example, on November 28, 1987, Chengnan Village, Qingyunpu Township, Nanchang suburb one