(cf 1991 Act, s 71)(1) The Director-General may inquire into:(a) any matter relating to public health, or(b) any matter that, under this Act, authorises an order or direction by, or that requires the approval or consent of, the Minister, the Director-General or the Chief Health Officer, or(c) any alleged offence under this Act or the regulations.(2) The Director-General may authorise a person in writing to exercise the functions specified by the authority for the purposes of assisting the inquiry.(3) The person’s authority may authorise the person to exercise any of the functions of an authorised officer under this Part that are specified in the authority.(4) For the purposes of an inquiry, the Director-General may obtain, use and disclose any information obtained by the Director-General under this Act, if the Director-General is of the opinion that it is reasonably necessary to do so for the purposes of the inquiry or for the purposes of protecting the health of the public.(5) This section has effect despite any law.