The "three-strikes" policy is likely to increase the level of unreported family violence, a survey of ex-offenders and their families has found.Click through for the rest.
Government officials have also warned "life sentence without parole" could push criminals to kill police and victims to avoid arrest.
The Act Party's three-strikes policy has been introduced as part of the Government's support agreement although Justice Minister Simon Power has conceded it may not make it into law.
An informal survey by lobby group Rethinking Crime and Punishment showed the proposal was likely to increase the level of unreported family violence.
"Rethinking has discussed the three-strikes bill with a group of offenders, ex-offenders and their families and whanau," director Kim Workman said.
"One response, consistent with the three-strikes experience in the USA, is that offenders facing a second or third strike offence, would have little qualms about committing further violent acts to escape apprehension or conviction."
So what exactly is this three strikes thing going to improve?