Police Powers and Responsibilities Act 2000

A missing person warrant must state—

that a stated police officer may establish a missing person scene at the place and exercise missing person powers at the scene; and

the day and time, of not more than 48 hours after the missing person scene is established, that the warrant ends.

If a Supreme Court judge issues the missing person warrant, the warrant must state whether or not a police officer may, under the warrant, do something that may cause structural damage to a building.