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Re: Acceptable Level of Certainty
Posted by: John J. Lentini, CFEI (IP Logged)
Date: February 16, 2007 02:48PM

Jim:

The Committee has struggled with this issue since the first edition. The 1992 edition listed 4 levels of certainty: “conclusive,” “probable,” “possible” and “suspected.” The interpretation of this section became immediately problematic.

“Conclusive” was equated with “beyond a reasonable doubt.” Probable was equated with “to a preponderance of the evidence. Levels of certainty (what some folks call a “comfort level”) became equated with burdens of proof.

The result was that some investigators would say that based on the data available they would not call a fire arson in a criminal trial, but in a civil trial they would. I’m not talking about 2 guys looking at the same evidence and reaching different conclusions; I’ talking about one guy making two determinations from the same data, depending on who was asking the question.

That was not the Committee’s intent, so A TIA was issued stating “Do not confuse levels of certainty with burdens of proof.” But the misinterpretation/confusion persisted.

So, in 1998, the section was excised, on the suggestion of a lawyer who wondered where “clear and convincing” fit into the scheme. A proposal to put it back was rejected in 2001, but in 2004, the terms “probable” and “possible,” the only two that have any real legal meaning, were put back in.

In the 2008 cycle, more proposals on the section were submitted, and the Committee sidestepped the issue. So the issue is still open, and the Committee would love to receive the solution in the form of a comment.

If you, James Mazerat, know what words should be in NFPA 921 (real text, not “something like…”) please send in your comment before the deadline, or send it to me and I will submit it.

The Committee understands the dilemma. (Disclaimer: I am expressing my opinion of where I think the Committee is on this subject, but I do not speak for the Committee). We will try to work it through. But if you don’t send in a comment, then I don’t expect to hear any bellyaching about the Committee’s action. In the immortal words of Pat Paulsen, “Vote or get off the pot!”

John Lentini, CFI, D-ABC
Fire Investigation Consultant
Florida Keys
[www.firescientist.com]



Subject Views Written By Posted
  Acceptable Level of Certainty 1672 Jim Mazerat 02/03/2007 09:47PM
  Re: Acceptable Level of Certainty 1054 Jim Mazerat 02/04/2007 12:11PM
  Re: Acceptable Level of Certainty 920 MIJ 02/04/2007 02:37PM
  Re: Acceptable Level of Certainty 1090 Jim Mazerat 02/04/2007 05:12PM
  Re: Acceptable Level of Certainty 1001 jmorse 02/04/2007 07:15PM
  Re: Acceptable Level of Certainty 942 Jim Mazerat 02/05/2007 10:37AM
  Re: Acceptable Level of Certainty 1011 MIJ 02/05/2007 11:35AM
  Re: Acceptable Level of Certainty 950 jgmcfps 02/08/2007 11:09AM
  One more comment 949 jgmcfps 02/08/2007 11:13AM
  Re: Acceptable Level of Certainty 1036 Jim Mazerat 02/08/2007 11:55AM
  Re: Acceptable Level of Certainty 888 jgmcfps 02/08/2007 02:59PM
  Re: Acceptable Level of Certainty 883 SJAvato 02/08/2007 03:59PM
  Re: Acceptable Level of Certainty 1021 Jim Mazerat 02/08/2007 05:15PM
  Re: Acceptable Level of Certainty 919 Jim Mazerat 02/08/2007 05:21PM
  Define "probable" 988 Gerald Hurst 02/14/2007 01:05PM
  Re: Define "probable" 1007 PMK140 02/14/2007 04:12PM
  Re: Define "probable" 948 Gerald Hurst 02/14/2007 10:20PM
  Re: Acceptable Level of Certainty 952 jbflanigan 02/05/2007 04:22PM
  Re: Acceptable Level of Certainty 887 Jim Mazerat 02/08/2007 12:13PM
  Re: Acceptable Level of Certainty 856 MIJ 02/08/2007 06:02PM
  Re: Acceptable Level of Certainty 984 Jim Mazerat 02/08/2007 08:10PM
  Re: Acceptable Level of Certainty 954 MIJ 02/09/2007 09:47AM
  Re: Acceptable Level of Certainty 895 jgmcfps 02/09/2007 02:12PM
  Re: Acceptable Level of Certainty 905 MIJ 02/09/2007 03:09PM
  Re: Acceptable Level of Certainty 900 jgmcfps 02/09/2007 04:50PM
  Re: Acceptable Level of Certainty 897 firecop5002 02/09/2007 08:17PM
  Re: Acceptable Level of Certainty 874 Jim Mazerat 02/09/2007 10:01PM
  Re: Acceptable Level of Certainty 827 dahebert 02/10/2007 08:12AM
  Re: Acceptable Level of Certainty 926 Jim Mazerat 02/09/2007 08:17PM
  Re: Acceptable Level of Certainty 1048 jgmcfps 02/10/2007 02:40PM
  Re: Acceptable Level of Certainty 878 Jim Mazerat 02/10/2007 04:36PM
  Re: Acceptable Level of Certainty 1005 jgmcfps 02/11/2007 08:16AM
  Re: Acceptable Level of Certainty 969 Jim Mazerat 02/11/2007 09:10AM
  Re: Acceptable Level of Certainty 1170 John J. Lentini, CFEI 02/16/2007 02:48PM
  Re: Acceptable Level of Certainty 1142 PMK140 02/16/2007 04:30PM
  Re: Acceptable Level of Certainty 974 Jim Mazerat 02/16/2007 07:11PM


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