Thieves often use stolen plates for petrol drive-offs and other vehicle-related crimes.
Stealing number plates in West Auckland will be much harder for thieves as police work their way around carparks fitting vehicles with security screws.
Thieves pinched more than 400 car number plates across the Waitakere area last year, often using them to get away with petrol drive-offs and other vehicle-related crimes. A significant number of those plates were stolen from carparks.
In a bid to reduce thefts, police teamed up with Neighbourhood Support to launch the Safer Plates initiative which allows members of the public to get their regular number plate screws replaced with special security screws.
Constable Luke Wilson said the new screws were virtually impossible to remove. Last week, he and other officers teamed up with Neighbourhood Support staff to re-screw plates at the Countdown carpark at the Westgate shopping centre.