PPT-Arson and Fire investigation

Investigation Fire investigation involves the examination of all firerelated incidents once firefighters have extinguished the fire The practice is similar to the examination of crime scenes in that the scene must be preserved and evidence must be collected. Do Now. : What is arson? . Fill out the video questions. We will finish tomorrow.. Closure. : What causes a back draft?. Objectives. : discover what arson is and how it is investigated.. Do Now. : What is the point of origin?. By Kathleen Barbosa. Forensic Chemistry. Arson Investigations. Components of ignition and combustion reaction . Fuel. Oxidizing Agent. Heat. Uninhibited Chemical Chain Reaction. Identify. . Ignitable. Cordeiro, . António . Leça . Coelho, . Rosaldo . J. F. . Rossetti, . João . Almeida. HUMAN BEHAVIOR UNDER FIRE SITUATIONS . PORTUGUESE POPULATION. OUTLINE. INTRODUCTION. SUMMARY . OF THE INVESTIGATION ANALYSIS. Goudge. Inquiry, Brandon Mayfield. Goudge. We need to rely on opinions of forensic pathologists looking into the deaths of children. The human consequences of flawed science are far reaching. E.g. Williams Mullins Johnson – 12 years in prison – Dr. Charles Smith – “child raped then strangled”. BRE Perspective on Provision of Expert Witness Services. BRE – Who we are… . Was the Fire Research Station, part of the Building Research Establishment , at Garston, Watford, UK.. BRE privatised (became independent) in 1997. “Fire”. Ashes denote that fire was;. Respect the grayest pile. For the departed creature’s sake. That hovered there awhile. Fire exists the first in light,. And then consolidate. Only the chemist can disclose. Used to be the ideal way for a criminal to make evidence go up in smoke. Arson Investigation Unit. N. ew techniques . & modern science . VS . fire pattern myths . & personal judgment. By exploring. Fire - . Produced when a substance undergoes rapid oxidation involving heat and light. . Fire Triangle. – Shows the three elements needed to produce and sustain a fire.. Flash Point . – The lowest temperature to which a substance must be heated in order for the substance to give off vapors which will burn when exposed to a flame or ignition source. . Used to be the ideal way for a criminal to make evidence go up in smoke. Arson Investigation Unit. N. ew techniques . & modern science . VS . fire pattern myths . & personal judgment. By exploring. Depth of burning wood. Used to determine the length of burn . Determine the origin of fire . What is the myth. Fire burns in more than one dimension. Can not tell the amount of time that a fire burned. Fire Basics Image: http://awittyassniga.tripod.com/things/fire.jpg T. Trimpe/B.Brooks 2006 http://sciencespot.net/ Fire Investigation Terms Fire - Produced when a substance undergoes rapid oxidation involving heat and light. Catching Killers FIRE INVESTIGATION Used to be the ideal way for a criminal to make evidence go up in smoke Arson Investigation Unit N ew techniques & modern science VS fire pattern myths & personal judgment SFS4. Students will evaluate the role of ballistics, tool marks and evidence of arson in forensic investigation. D. Evaluate possible indicators of arson and criminal bombing. FORENSIC ASPECTS of Arson and Explosives Used to be the ideal way for a criminal to make evidence go up in smoke. Arson Investigation Unit. N. ew techniques . & modern science . VS . fire pattern myths . & personal judgment. By exploring.