纵火调查公安部天津消防科研所宋景文纵火是一种在人们已知的那种环境下不会燃烧起火，却因有人故意点燃而形成的火灾。调查人员必须取得起火点和火灾原因的证据，才能得出是否为纵火的结论。一、纵火的物证存在有大量的与起火点和火传播有关的物件，它们可以作为火灾原因... Arson Fire Investigation The Tianjin Fire Science Research Institute of the Ministry of Public Security Song Jingwen’s arson is a kind of fire that is not burned and fired in people’s known environment but is deliberately ignited. Investigators must obtain evidence of the cause of the fire and the cause of the fire in order to arrive at a conclusion as to whether it is arson. First, there are a large number of items related to fire points and fire propagation in the physical evidence of arson. They can be used as fire causes...