Topic – NFPA 921: Is Negative Corpus Dead?

This presentation will focus upon relevant portions of NFPA 921 in difficult origin and cause of investigations. Specifically, the presentation will discuss the concept of negative corpus, NFPA’s current position on negative corpus and extraneous factors and evidence which may be factored into a problematic origin and cause investigation. The presentation also will include a discussion of two, actual fire investigations which resulted in favorable trial results. The session will also incorporate practical suggestions and creative approaches to addressing difficult origin and cause investigations, including “Undetermined” fire classifications.

Please register for IL-IASIU TBD on Mar 26, 2021 9:00 AM CDT at:

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Have you heard? The Annual IL Chapter Seminar starts on April 22, 2021.   Details will be updated on the Next Meeting here on our site and also on the chapter’s Facebook Page.


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