Chief Constable Richard Brunstrom backs the speeding campaign

The force's Arrive Alive campaign, set up to try to cut the number of fatalities on the roads by telling drivers to drop their speed, caught 103 force vehicles driving too fast in the past year.

In 82 cases the police cars were answering emergency calls but in a further 12, the driver had no legitimate excuse and received three points on their licence and a �60 fine.

Arrive Alive spokeswoman Beth Mitcheson said the system was fair and anyone caught speeding could be prosecuted.

The cameras do not discriminate between vehicles Beth Mitcheson, Arrive Alive

"We are often asked if it is one rule for us and another rule for everyone else, these figures prove that isn't the case," she said.

"The cameras do not discriminate between vehicles. We have all got to look at the way we drive.

"Nobody is above the law," she added.

Mr Brunstrom has previously described speeding motorists as "anti-social" and "criminals".

In July he denied claims that he was obsessed with catching speeding motorists at the expense of fighting crime.

Arrive Alive is run by North Wales Police, health authorities and a number of other organisations.

Last year 53 roads across north Wales - around 10% of the area's total network - were covered by a mix of fixed and mobile cameras.

An average of 4,000 speeding drivers a month were caught on camera in north Wales last year.

North Wales Police declined to comment on their officers who had been caught.