(a) Any district attorney of this state may request the assistance of the bureau to conduct and exercise its lawful powers and authorities in the investigation of any criminal matter.

(b) Any head of a municipal or county fire department may request the assistance of the bureau to conduct and exercise its lawful powers and authorities in the investigation of any crime related fires.

(c) In the event the bureau acts in cooperation with a municipality or other political subdivision of the state, the services and records of such municipality or other subdivision shall be accessible and available to the bureau at all times.