(1)  An authorised officer may enter land and premises and carry out any inspection or do anything else reasonably necessary for the administration or enforcement of this Act.

(2)  A power of entry conferred by this Act, either under this section or another provision of this Act, may be exercised –

(a) with the consent of the occupier of the land or premises to be entered; or

(b) on the authority of a warrant; or

(c) in an emergency, without a warrant and without consent.