NZers favour reducing the amount drivers can legally drink before getting behind the wheel, with 70 per cent supporting a limit of 50mg of alcohol per 100ml of blood, a survey finds.

Male motorists take more risks than women at drink-driving and speeding, an AA Insurance survey has found.

Police will use undercover tactics - including hiding behind trees with video cameras to film motorists - in a hardline campaign to cut down the road toll.

Police are shocked that a woman whose daughter was seriously injured by a drunk driver last year was herself caught driving while over the limit.

Lynette Kilmartin has been told she'll probably never walk again after being driven into by a man who had just attacked a prostitute.

A motorcyclist was spotted travelling along a busy stretch of SH1 at a speed described by one officer as unsurvivable if there was a crash.

A man who backed over a policewoman in 2008 has been found guilty of drink driving causing injury.

One man is in hospital and another has been arrested after police chased two men allegedly doing a wheelie on a dirt bike.