If an insurer has reason to believe that a fire loss to its insured's real or personal property was caused by other than accidental means, the insurer shall notify the State Fire Marshal or other appropriate law enforcement agency charged with the responsibility to investigate fire losses and furnish such persons with all relative material acquired during its investigation of the fire loss, cooperate with and take such reasonable action as may be requested by any law enforcement agency, and cooperate with the court and administrative agencies of the state, and any official from said Fire Marshal's office or any law enforcement agency charged with the responsibility to investigate the fire.