Their jobs are to find out whether the fires are accidental or arson. It also includes collecting evidence, arresting the suspect and presenting the case to the prosecutor.

It's an advantage for law enforcement and fire departments around. We can pool our resources and have task forces that can actually work these bigger fires.

I've been known to flunk teams who allowed the crime scene to be contaminated. You don't let anyone get inside the crime tape.

I've been doing this for 35 years. I haven't been able to figure them out yet.