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Mr. Guthrie has over 20 years of forensic-related investigation experience – from vehicle accident reconstruction, including rollovers and large truck collisions, to fire origin and cause investigations, all across the United States, U.S. Virgin Islands, and Mexico.  He has investigated large commercial fires, residential fires, oil-field explosions, and vehicle fires.  He has a vast understanding of residential construction systems, and construction practices.  He has studied and offered testimony on fire protection systems, such as smoke alarms, carbon monoxide alarms, and portable fire extinguishers.

He has a vast understanding of vehicle mechanical systems, and vehicle accident reconstruction.  He has investigated several hundred rollover accidents over his career, and dozens of loss-of-directional-stability accidents.  He has been involved with large-scale vehicle testing, including dynamic remote control and static tests.  He has also conducted small-scale forensic tests relating to Hot-Shock, and mechanical component tests for a variety of products.

His areas of expertise include the following:

• Fire Origin & Cause (including explosions)
• Wildland Fire Investigation
• Forensic Photography
• Technical Research and Writing
• Forensic Testing