The Labour Party says the Government should take some responsibility for a police blunder which the Government itself has described as a "monumental cock-up".
Parliament had to rush through a change to the Policing Act on Thursday after it was revealed 63 police officers had been incorrectly sworn in over the past four years.
Anne Tolley. Photo: NATIONAL PARTY
The blunder created a loophole which defendants could have used to challenge their arrests.
Police Minister Anne Tolley says the blunder is embarrassing and should never have happened.
A similar mistake was discovered four years ago.
Labour Party police spokesperson Jacinda Ardern says the minister needs to explain why she did not ensure the right processes were in place after that mistake.
Ms Tolley says the Police Commissioner has assured her it won't happen again.
Green Party police spokesperson David Clendon says the Auditor-General needs to get involved and investigate exactly what went wrong.
Acting Police Commissioner Viv Rickard told Morning Report it is clear the issue was the responsibility of the police, and an apology has been given to the minister.
Mr Rickard says the police have been upfront about the mistake and fixed it, and the individual officers have done nothing wrong.
