(1) A workplace safety officer may enter a workplace and remain there for as long as may be necessary, or desirable, to carry out an authorised investigation.
(2) The power may be exercised:
(a) after giving the employer reasonable notice of the officer's intention to enter the workplace and the purpose of the authorised investigation; or
(b) on the authority of a warrant or an authorisation under subsection (4).
(3) However, an officer may only enter a workplace that is currently used as a place of residence:
(a) with the consent of the occupier; or
(b) on the authority of a warrant.
(4) The Authority may authorise an officer to enter a workplace if the Authority believes, on reasonable grounds, that it is urgently necessary for an officer to do so:
(a) to investigate a dangerous, or potentially dangerous, situation; or
(b) to preserve evidence of a contravention of this Act.