Taxi companies have reassured passengers they would not access footage from cameras in cabs without police authority.
Cameras in taxis became compulsory on Monday following a spate of attacks on drivers last year, including the murders of Christchurch taxi driver Abdulrahman Iktairi and Auckland driver Hiren Mohini.
Alert Taxis director Robert Van Heiningen said taxi drivers could not access footage.
The regulations required each company to appoint one person who could access footage. They had to keep a log of what footage was viewed and why.
N Z Police spokesman Grant Ogilvie said police would only release footage to media if it helped with criminal investigations.
