I'll never forget doing a night out on patrol catching drink-drivers with Rotorua police's TAG (Traffic Alcohol Group) about 10 years ago.
I was riding along with the then officer in charge of the group, Senior Sergeant Denton Grimes, when he pulled over a driver who was clearly annoyed at the inconvenience.
"Why aren't you catching killers?" the stroppy driver snapped at Mr Grimes before reluctantly giving his name and address.
Mr Grimes' response was quick and accurate.
"That's exactly what we are doing," he said.