FSI: When a fire scene becomes a crime scene

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A $15,000 reward is being offered for any information on whoever started numerous wildfires still burning around Louisiana. Officials hope the reward, offered by the Louisiana Forestry Association, will help bring those who started the Hwy 113 Fire, the Lions Camp Road Fire, and the state’s largest wildfire on record, the Tiger Island Fire, to justice.

But how do officials even determine whether wildfires were intentionally or accidentally started? It’s not what TV would have you believe.

The biggest offender of incorrect investigation portrayals, CSI: Crime Scene Investigation (and its numerous offshoots), has long frustrated detectives, forensic scientists, and other law enforcement personnel, but the frustration doesn’t stop at police shows. CAL FIRE, the agency portrayed on the popular show Fire Country, voiced its frustrations with the show’s inaccuracies from the moment the trailer dropped.

Fire Country largely skirts the actual evidence that helps  investigators determine the cause of fires. Because of that, fire investigators are often reduced to an antagonizer role in the show. The reality of fire investigation is much more important and in-depth than Fire Country makes it out to be, especially at a time when arsonists are setting some of the world’s most devastating wildland fires.

Tiger Island Fire 8-27-23

Tiger Island Fire on Saturday, Aug 27th. Extreme fire behavior was present over the weekend as the Southern Area Red Team took command of the incident.
Tiger Island Fire 08-27-2023 — Extreme fire behavior persisted over the weekend as the Southern Area Red Team took command of the incident. Inciweb photo.

Greece’s Civil Protection Minister Vassilis Kikilias announced that there have been 79 arrests of “arsonist scum” in connection to the hundreds of wildfires burning around the nation. A man in Canada is facing charges in connection to numerous forest fires that forced evacuations. Albania officials arrested two men caught on camera starting the area’s worst wildfire of the season. And the arsonist who lit the fatal Esperanza Fire in southern California in 2006 was sent to Death Row at San Quentin after a jury in 2009 found him guilty on 42 of 45 counts including 5 counts of first-degree murder, 20 counts of arson and 17 counts of using an incendiary device to start fires.


But how does a fire scene turn into a crime scene? It all rests on investigators to determine the origin and the cause of the fire, according to an NWCG handbook.

“Accurate wildland fire origin and cause determination is an essential first step in a successful fire investigation,” the handbook reads. “Proper investigative procedures that occur during initial attack can more accurately pinpoint fire causes and preserve valuable evidence that might be destroyed by suppression activities. If a fire is human-caused, the protective measures described in the guide can preserve evidence that may lead to effective and fair administrative, civil, or criminal actions.”

Separating some of the wildland fire arson myths perpetuated in media like Fire Country is also a focus of the handbook. While fictional arsonists are depicted as highly sophisticated and using elaborate electronic devices to set numerous large fires in rapid succession, real-life arsonists are usually unskilled offenders who use matches or other simple devices to set small fires that may escalate in frequency and severity.

(Two classic wildfire arsonist stories — and investigations — are detailed in books by John Maclean:  The Esperanza Fire and River of Fire.)

Patterns often accompany arson fires, usually involving multiple fires geographically near to each other within a close timeframe. Most wildland arson fires are set at a location that can be accessed by motor vehicle and are not in rugged terrain. Arson can also be indicated by a lack of evidence, like when numerous fires with undetermined causes exceed normal fire history.

Despite the in-depth guide provided by NWCG, humans often can’t determine the cause of a fire on their own. Fortunately, arson dogs can often pick up where humans are lacking; State Farm actually has had an arson dog training program for about 30 years, and many states keep a trained accelerant-detection arson dog on staff.

Investigators of the Tiger Island Fire used one of the state’s five arson dogs to help determine the wildfire’s cause. The dogs are trained to detect 15 different types of ignitable liquids and identify whether they were used at the origin of fires.

You can learn more about arson dogs, specifically Pablo from the Louisiana Office of State Fire Marshal, [HERE].

 

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3 thoughts on “FSI: When a fire scene becomes a crime scene”

  1. Yes, Kelly, but I haven’t been able to find it on the Web. I can’t find my tear-sheet either, but I’ll keep looking.

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  2. I wrote an Op-Ed for The Los Angeles Times before the Cedar Fire was “contained.” It was entitled “Ember Alerts or Media Misinformation,” if I remember correctly. I spoke with Jack Cohen, who had come down from a fire in San Bernardino County. He pointed out that the eucalyptus tree trunks were scorched on the structure-sides, not the brush sides. The media have long misinterpreted wildland fires using their own over-fertile imaginations, leaving the impression that the flame-front is responsible for “burning through” communities.

    It’s easy to get things wrong when there are so many variables at play. Wildland fire can serve as a cover for arson, even if the initial fire was due to a lightning strike, for example. The “cause” of the North Park Fire, if I remember correctly, was undetermined; my suggestion that it could have been caused by errant fireworks was rejected.

    I talked to one of the fire bosses on the Esparanza Fire who was devastated by the loss of life, and believe he felt in part responsible. Two tragedies for the price of one. I wondered why the crew didn’t take shelter in the house, but I could never find enough particulars to come to even a provisional (not enough evidence) conclusion. Even if the crew shouldn’t have been sent in to defend the house, that would be something everyone does at one time or another–a mistake. Not a crime.

    So the devil is in the details. Keeping emotion out of judgment is a talent all need to develop, but expecially investigators.

    This is a worthy subject for extended discussion–with all the cards on the table, but not rushing to judgment. “The suspension of judgment is the highest exercise in intellectual discipline.” –R. M. Gilmore

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