Two thirds of cannabis users say the drug doesn't affect their driving ability, while 16 per cent say it improves it.

National MP severely embarrassed by read-driving incident, says Bill English.

The head of 2degrees fully supports a ban on cellphones while driving, after he wrote off another car while being distracted by his.

Cars belonging to repeat drunk drivers should be fitted with a disabling device that detects breath alcohol levels, a lobby group says.

A small community is reeling from the death of a popular teacher and new father mown down by a 70-year-old allegedly "blotto" from drink.

An online survey of 1200 Kiwi drug users shows one in four drove after taking cannabis in the last year.

A police officer who avoided a drink-driving blood test because of a legal loophole has been charged with perverting the course of justice.

A senior policeman stopped for erratic driving was so drunk he had to lean on his car for support, court papers say.