Two cars belonging to one person have made almost 700 trips on the Northern Gateway motorway without paying the $2-a-trip toll - and the owner now faces fines of more than $26,000 if the fees are not paid.

Five police officers have been charged with drink-driving in the past 12 months - including a senior constable working in an Auckland serious crash unit.

A man has been formally charged after allegedly fighting his partner for car keys on a night of drinking before driving and killing a solo mother.

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.

A senior Queenstown police officer is facing a code of conduct inquiry after being caught speeding in the Kawarau Gorge.

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.