When a fire breaks, there are sometimes suspicious circumstances present. This triggers the need for investigators to treat the affected area like a crime scene, which includes doing a thorough investigation. Arson investigations are a bit different from other investigations.
The goal of an arson investigation is to determine if there are signs that the fire wasn’t an accident. The investigation begins when firefighters are still on the scene. As soon as the fire is under control, investigators secure the area to preserve evidence.
What’s done during an arson investigation?
Arson investigators will interview the first responders to determine if there’s anything critical that might be important to the investigation. This includes things like unusual fire behavior or smells that indicate the presence of accelerants. Some investigations involve dogs that are trained to sniff out accelerants.
As the investigation continues, fire investigators may work with law enforcement officers and insurance representatives. They’ll look for the point of origin, burn patterns, residue and signs that lighter fluid, gasoline or other flammable substances were present. They’ll also look for ignition devices or matches.
Photos, sketches and detailed notes are taken throughout the process. Investigators will also examine electrical systems, appliances and anything else that could rule out accidental causes. It’s not uncommon for labs to analyze debris samples to confirm the presence of flammable liquids.
Investigators may interview other people, such as property owners, witnesses and those who have access to the building. They can also look into financial records, insurance coverage and any recent disputes regarding the building, owners or occupants. They may also look into previous fire and police reports for the address.
Once the investigation is complete, an arson arrest may be conducted if there’s probable cause that shows someone caused the fire. This triggers the need for that individual to begin working on a defense strategy against those charges.