Lack of science is behind many false arson cause and origin investigations
Through the 1980s, proponents (including ourselves) of a science-based approach to arson investigations waged an uphill battle, finally winning a major victory in 1992 when the National Fire Protection Association (NFPA) published its Guide for Fire and Explosion Investigations (NFPA 921). NFPA 921 would subsequently become the bible in fire and arson investigations.
A Fire Marshal’s report discusses “V-patterns” as an indicator of fire origin. The report states: