Police Powers and Responsibilities Act 2000

A search warrant issued because there are reasonable grounds for suspecting there is warrant evidence or property at a place ends—

if the search warrant is for stock, whether or not it is also for anything else—21 days after it is issued; or

otherwise—7 days after it is issued.

A search warrant issued because there are reasonable grounds for suspecting warrant evidence or property is likely to be taken to a place within the next 72 hours ends 72 hours after it is issued.