(1) The director-general or a police officer must, before anyone enters premises under a safe custody warrant—
(a) announce that the director-general or police officer is authorised to enter the premises; and
(b) give anyone at the premises an opportunity to allow entry to the premises; and
(c) if the occupier of the premises, or someone else who apparently represents the occupier, is present at the premises—identify themself to the person.
(2) The director-general or police officer is not required to comply with subsection (1) if the director-general or police officer believes on reasonable grounds that immediate entry to the premises is required to ensure—
(a) the safety of anyone (including the director-general or police officer or a person assisting); or
(b) that the effective execution of the warrant is not frustrated.