Officers were chasing Stephen Hohepa McDonald, 50, along the Auckland's North Western motorway on January 23 when the 17-year-old courier driver was accidentally shot by an armed offenders squad member.
Auckland City district police commander Superintendent George Fraser told Mr Naitoko's family this week that no-one would be charged over his death.
The decision had been made at the end of a lengthy and thorough homicide investigation, he said.
However, Stephanie Cook and her family have questioned why the officer who fired the fatal bullet won't face a judge and jury, like anyone else.
"I hate him for what he did -- my daughter will grow up without a father," Ms Cook told the Herald on Sunday.
"If I was running around with a gun and shot somebody by accident, surely I would be behind bars already."
She did not accept police were acting within their duties, or in self-defence. In any case, it should be up to a court to decide that, not police.
Ms Cook said she wanted to see the police report and meet the officer who fired the fatal bullet to hear an apology.
"The least he can do is meet us and let us know who he is."
She said she would question him on the circumstances of the fatal shot "and how he could miss (the offender) ... being a trained police officer and all.
"I hope Hala is haunting him."
The Police Association described the decision as appropriate.
Association vice-president Chris Cahill said there was no criminality in the actions of the officers involved and it would have served no good purpose to charge them.
Auckland University associate law professor Bill Hodge said a prosecution could have come about depending on whether police had been reckless.
However, in this case, lives were in danger.
"It's one of those rare situations in New Zealand that deadly force was justified," he said. "The deadly force was legitimate to this deadly target. In this case the target was a great threat."
Prof Hodge said it was important that the police not be deterred in carrying out their duties in such circumstances.
"We need to protect them from being deterred and petrified of legal consequences."
