And his staff said investigators had previously gone to the homes of fire personnel to serve them with notices to appear at a hearing.
"Because the last thing security, medics, and fire personnel need is people getting in the way," Hood said.
The accident provoked a large response by fire personnel and other emergency workers.
Citizens are advised not to return home following a wildfire until fire personnel determine the area is safe.
They maintain that fire personnel are better trained and equipped for those types of disasters.
A total of 1,345 fire personnel helped get the blaze under the control.
Meanwhile, the suspect area remained sealed off, accessible only by fire personnel.
It also provides refresher and advanced training courses for all fire personnel.
Later that afternoon, the president visited rescue workers and fire personnel at the Pentagon.
I'd like to add to that list the medical workers and the police and fire personnel who stayed on the job.