一场大火扑灭后,现场总会残留着各种烧焦程度不一的物品和痕迹,有时甚至还有尸体。大火究竟是一场意外还是凶残的纵火?在上海市公安物证鉴定中心,张成功与其他技术民警会让这些火灾现场的物证给出答案。和消防员的调查工作有什么差别?消防员侧重于抢救生命、保护现场,并且调查现场燃烧的情况,确定火因,进行责任认定及善后等。火灾可能是事故,也可能是案件,我们要提供科学的证据,来判断火灾到底是事故还是案件。好比说发生一起公交车燃烧事件后,我们最主要 After a fire was extinguished, all kinds of charred objects and traces of charred residue were left on the scene, and even bodies were sometimes left behind. Is the fire an accidental or cruel arson? In Shanghai Public Security Physical Evidence Identification Center, Zhang Chenggong and other technical police officers will give evidence of these fire scenes to give an answer. Firefighters and survey work What is the difference? Firefighters focus on saving lives and protecting the site, and to investigate the scene of the burning situation, determine the cause of fire, the responsibility identified and aftermath. Fire may be an accident, it may be a case, we must provide scientific evidence to determine the fire accident or case. For example, a bus incident occurred after the incident, we are the most important