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Re: National Geographic: Forensics under fire 10/12 at 10PM
Posted by:
Tony La Palio (IP Logged)
Date: October 16, 2006 01:45PM
John,
Great presentation if I am not mistaken the fire occured in 1991 that was what fifteen years ago?
Having been an arson investigator since 1985 I was wondering where the fire investigators would have gotten such bad information on the crazing of glass,being the result of a fast buildup of heat.
I did find two sources not very reliable but for the early eighties it was one of the few sources one states " Crazed glass, where the fractures or cracks resemble a complex road map in the glass, is certainly indicative of a very rapid buildup of heat sometime during the course of the fire". Kirk's Fire Investiagtion John D Dehaan second edition 1983.
The other one is a little red book " Crazing of glass, Large cracks and heavy smoke stain generally indicate a slow burning while irregularly shaped cracks and slight smoke generally indicate rapid burning."A pocket guide to arson investigation. Factory MuutalSystem and the Massachusetts State Firefighting Academy 1979.
I can see why someone could be alittle confused back then in the dark ages.
Fire Investigation has come along way and its one of the reasons most of us old guys still carry erasers on our pencils.
Here is to better fire investigation through science.
Best regards, Tony
National Geographic: Forensics under fire 10/12 at 10PM
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John J. Lentini, CFEI |
10/11/2006 11:20AM |
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MIJ |
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PMK140 |
10/14/2006 06:30AM |
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10/16/2006 01:45PM |
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MIJ |
10/16/2006 03:24PM |
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PMK140 |
10/16/2006 07:10PM |
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MIJ |
10/16/2006 08:17PM |
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10/17/2006 02:54PM |
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10/17/2006 02:48PM |
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MIJ |
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10/17/2006 06:16PM |
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10/17/2006 06:26PM |
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10/17/2006 06:20PM |
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10/17/2006 06:26PM |
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10/17/2006 06:50PM |
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MIJ |
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ttijerina |
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firecop5002 |
10/18/2006 11:00PM |
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10/18/2006 08:58PM |
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MIJ |
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10/19/2006 01:18PM |
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