337Announcement before entry under warrant

337  Announcement before entry under warrant  (1) Before an authorised officer enters premises under an adjacent premises warrant, the authorised officer must:  (a) announce that the authorised officer is authorised to enter the premises; and  (b) if an appropriate person for the premises is present at the premises:  (i) ensure that the identity card of the authorised officer is shown to the appropriate person; and  (ii) give any person present at the premises an opportunity to allow entry to the premises. Exception for some adjacent premises warrants  (2) However, an authorised officer is not required to comply with subsection (1) if:   (a) entry to the premises is to be made for the purposes of executing an investigation warrant or monitoring warrant on other premises; and  (b) the authorised officer believes on reasonable grounds that immediate entry to the premises is required:  (i) to ensure the safety of a person; or  (ii) to ensure that the effective execution of the investigation warrant or monitoring warrant is not frustrated.  (3) If:  (a) an authorised officer does not comply with subsection (1) because of subsection (2); and  (b) an appropriate person for the premises is present at the premises; the authorised officer must, as soon as practicable after entering the premises, show the authorised officer’s identity card to the appropriate person.