(1) An authorised officer may, as may be reasonably required for the purposes of the enforcement of this Act, carry out an audit under this Act or inspect any document relating to a price and service plan, or enter and remain in any place.(2) When an authorised officer enters a place under this section, the authorised officer (a) may be accompanied by such assistants as the authorised officer considers necessary or appropriate; and(b) may take any equipment the authorised officer considers necessary or appropriate for the functions that the authorised officer is to carry out in the place.(3) An authorised officer may use reasonable force to enter and remain in a place under this Part.(4) A person must not obstruct, hinder, delay, threaten or assault a person who is (a) authorised to enter a place under this section; and(b) acting in accordance with this section.Penalty: Fine not exceeding 100 penalty units.