In a three-month trial in Manukau, police recovered 15 stolen vehicles, took 180 disqualified, forbidden or suspended drivers off the road, and recovered stolen property from various offenders, he said.
"So the benefits are clear."
Southern officers have been trained how to use the new device, and the vehicle was expected to be deployed across the district.
A Police National Headquarters spokesman said the system was vehicle-focused and did not store any form of facial recognition.
The system has been successfully implemented by law and order agencies around the world, with five vehicles in New Zealand currently fitted with the technology.
"This is a valuable tool in fighting crime. Law-abiding motorists have nothing to fear."