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Courts examine the “negative corpus” amendments to NFPA 921 and process of elimination in considering the admissibility of fire experts’ opinions

 “Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.”

Arthur Conan Doyle, The Adventures of Sherlock Holmes

For many years, it was accepted practice for a fire investigator, having eliminated accidental or natural causes of a fire, to conclude, without specific physical evidence, that the fire must have been caused by human agency, i.e., arson.  In product liability cases, investigators would conclude that an appliance must have been defective, as no other cause of fire could be identified.  Courts routinely accepted such opinion evidence in criminal and civil cases. This method of fire cause determination was referred to as “negative corpus” because it was akin to a conclusion that murder had occurred even though no body had been found.

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From Out of the Abyss...

This week’s article from the past is titled Incendiary Fires Can Be Spotted and was written by Benjamin Horton, CPCU, who was President of the National Adjuster Traing School in Louisville, Kentucky..  It is taken from the Decembe 1968 Vol. XVI No.5 issue.

Incendiary Fires Can Be Spotted 

In the new issue of NFPA Journal®, President Jim Shannon said the Association will focus on the leading causes of home fires, including cooking. "We also need to continue to push hard for home fire sprinklers. That's still a large priority for NFPA, and we plan to work very aggressively in 2014 on our residential sprinkler initiative," he said.

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NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

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SAN DIEGO - A Team 10 and Scripps News investigation found arson fires are not investigated properly in many American cities -- including San Diego -- due to a chaotic patchwork of reporting systems and standards.

Many deliberately set building fires are not reported to the federal government.

Nationally, just 5 percent of all residential building fires are intentionally set, according to the National Fire Incident Reporting System, which is part of the Department of Homeland Security.  Data collected by Scripps News suggests the national arson rate to be significantly higher.

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White Paper

Study by: Albert Simeoni, Zachary C. Owens, Erik W. Christiansen, Abid KemalExponent, Inc. USAMichael Gallagher, Kenneth L. Clark, Nicholas SkowronskiNorthern Research Station, USDA Forest Service, USAEric V. Mueller, Jan C. Thomas, Simon Santamaria, Rory M. HaddenSchool of Engineering, University of Edinburgh, UK

Albert Simeoni, Zachary C. Owens, Erik W. Christiansen, Abid Kemal Exponent, Inc. USA Michael Gallagher, Kenneth L. Clark, Nicholas Skowronski Northern Research Station, USDA Forest Service, USA Eric V. Mueller, Jan C. Thomas, Simon Santamaria, Rory M. Hadden School of Engineering, University of Edinburgh, UK

ABSTRACT

Two experimental fires, with contrasting intensities, were conducted in March 2016, in the Pinelands National Reserve (PNR) of New Jersey, United States in order to provide a preliminary assessment of the reliability of the fire direction indicators used in wildland fire investigation.  The experiments were part of a larger project intended to measure firebrand production in a forested ecosystem.  As part of this project, fire behavior, as well as the environmental and fuel conditions were also measured.  Two burn parcels, covering an area of approximately 30 hectares each, were ignited from unimproved forest roads which delimited them.  The forest canopy was comprised primarily of pitch pine with intermittent oaks.  The understory contained a mixed shrub layer of huckleberry, blueberry, and scrub oaks. In order to explore a wide range of indicators, objects such as bottles, cans and small fence elements were planted in the burn area, and photographed before and after the fire.  To obtain an accurate measure of pre- and post-fire fuel properties, fuel load, fuel bulk density, and fuel moisture content were also measured. In addition, environmental data (wind velocity and direction, air temperature and humidity) were recorded.  The fire behavior can be reconstructed using measurements of fire rate of spread, fire front temperatures, fire front geometry, and heat fluxes.  Video and infrared cameras were used to document the general fire behavior in selected locations.  This paper represents the first step in the analysis of the fire indicators and focuses on the more intense of the two burns and on the appearance of the macro- and microscale fire pattern indicators.  A majority of the indicators were assessed, although the configuration of the burn parcels, the ignition technique, and precipitation immediately following the fires limited a full study.  The results show that some fire direction indicators are highly dependent on local fire conditions and fire behavior and may be in contradiction with the general spread of the fire.  Overall, this study demonstrates that fire pattern indicators are a useful tool but must be interpreted in the frame of a general analysis of the fire, combined with a good understanding of fire behavior and fire dynamics.

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Seminar Dates for 2018 and 2019

March 5-8, 2018  &  September 24-27, 2018

February 25-28, 2019  &  September 23-26, 2019

The Goal is Truth

By Paul Francois & Enrique Garcia
Third Degree Communications

When testifying in court as to the manner in which we conducted an interview, defense counsel will often ask us whether we just wanted his client to "confess." We answer that we do not seek confessions  but rather truth. After all, no good cop is interested in false information, only truthful information. That is why our motto at Third Degree Communications is "Nothing but the Truth."

One little tidbit we impart on our students to help convey this concept is by reminding them that if obtaining the truth is their ultimate goal, then they should be doing nothing that might prevent them from obtaining the truth. For example, getting angry with a subject who is lying would most likely sever rapport and interfere with accomplishing the goal of obtaining the truth. Raising my voice, insulting him, or speaking to him in a condescending manner are all most likely going to be rapport killers that will stymie my ability to get to a successful and truthful outcome with the subject. If we want to get people to provide us with truthful information, we should avoid doing anything that will interfere with accomplishing this goal.

This actually applies to many areas of our lives if we think about it. Let's say I've made a new year's resolution to avoid gossiping about other people. There are several steps I can and should consider that will help me accomplish this goal, including but not limited to:

  •  Avoiding certain people who I know thrive on gossip
  • Not asking certain questions that are more likely to lead to gossip, such as "Who did that?" "What are you guys talking about?" "What happened next?"
  • Excusing myself from conversations that turn in the direction of gossip

In the same manner, if my goal is to obtain truthful information, I must only engage in behavior that's more likely to help me accomplish this goal and to avoid behavior that will interfere: 

  • Treating people with dignity and respect
  • Manipulating my tone of voice to maximize my effectiveness
  • Establishing rapport
  • Being a compassionate, empathetic listener
  • Projecting an image of being non-judgmental and accepting

 

Getting people to tell the truth means creating an environment that is conducive to helping them cooperate. Obtaining our goal means everything that I say and do is oriented toward achieving that goal. It's a remarkably simple concept, but a critical one to remember throughout the interview.

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