Immediately after the occurrence of any fire, the Chief/Designee of the Fire Department shall investigate or cause to be investigated the cause, origin, and circumstances thereof, and, as far as possible, shall determine whether the fire was the result of accident, carelessness, or design. If they have reason to believe that the fire was of suspicious origin, they shall notify the proper authorities designated by law to pursue the investigation of the matter, and shall further cooperate with the authorities in collecting evidence and in the prosecution of the case when properly instituted.
(1989 Code, § 95.13)