Until the 1992 publication and eventual acceptance of NFPA 921: Guide for Fire and Explosion Investigations by the National Fire Protection Association, fire pattern analysis was a widely accepted method of determining the presence of an ignitable liquid. There were specific burn patterns that fire investigators believed could only be created in the presence of an ignitable liquid; therefore, if any of these suspected fire patterns were found at a fire scene, there must have been an ignitable liquid present to have caused them. Furthermore, if a fire was perceived to have burned hotter than normal, the abnormal heat was often attributed to the presence of an ignitable liquid. Because the presence of an ignitable liquid in an unexpected location is such a strong indicator of an intentionally set fire, the presence of these fire patterns and the perception of abnormal heat were considered prima facia evidence of the crime of arson.
The Dates for the 2014 Utah IAAI Seminar in Wendover, Nevada are:
February 23-26, 2014
Mark your Calendar Now!