171   Part not to affect police officers’ other powers and duties

(1)  This Part does not operate to absolve a police officer who receives a complaint from liability to perform any duty imposed on the police officer otherwise than by this Part.

(2)  Action on a complaint may be taken otherwise than under this Part (including action involving criminal proceedings and action under Part 9) even if action on the complaint has yet to commence or is in progress under this Part.

(3)  This section has effect despite any other provision of this Part.