Controversial new rules on search and surveillance are now the law of the land.
The Search and Surveillance Act takes effect as of today.
Passed in Parliament earlier this year, the law gives extra scope to police powers around the use of video surveillance.
It fills gaps authorities said were present following the inadmissibility of evidence in the Urewera raids case.
The new law also extends greater surveillance powers to a number of other Government departments - a change that sparked strong criticism of civil rights groups and opposition parties.