The Council for Civil Liberties is concerned about the police using the shooting of a man in Wellington as a success story following a new weapons policy.
The man was shot and tasered by two officers during an incident in Porirua.
Police say the officers arrived at a Penguin Grove address at about 5.30am on Thursday to find a distressed woman with a large cut to her arm.
Hearing a commotion in another room, they forcibly entered it to find a man holding a knife over another woman.
Police say their new policy of having guns stored in lockboxes in police cars saved the woman's life.
The Council for Civil Liberties says the acceptance of weapons may encourage the public to arm themselves too.