(1) This Part (except as provided by section 338) does not limit the operation of any other provision of, or made under, this or any other Act relating to proceedings that may be taken in respect of offences.
(2) Nothing in this Part limits any functions that police officers have apart from this Part (including the power to issue a penalty notice under any other Act or statutory rule).
(3) Nothing in this Part requires a police officer to issue a penalty notice instead of taking any other proceeding or action a police officer may take in respect of an alleged offence.