An Auckland man has failed in his latest bid to appeal convictions for assaulting a policewoman and threatening to kill another police officer.
The man was jailed for two years in 2009 after he was convicted in a judge-alone trial of injuring with intent to injure.
The Crown said the man grabbed the police officer by the throat and pushed her backwards on to the ground when she tried to arrest him on the North Shore in 2007.
She suffered two broken ribs, a fractured vertebra, grazes and cuts.
The man was also jailed for eight months in 2008 after a jury found him guilty of threatening to kill a police officer.