The simple answer is no.
Radar detectors are NOT illegal in New Zealand to buy, sell, or operate and it’s unlikely this law will ever change.
Over the last decade, various governments have made noises about banning radar detectors in NZ but as yet nothing has happened and it’s unlikely to ever change. There is evidence to support the idea that radar detectors actually help drivers to stick to the relevant speed limits.
This is from a senior road policing inspector
“Some people think it will enable them to speed and endanger the public without getting caught, but that’s not necessarily the case.”
The take a look at some of the self-professed “experts” all having a crack at what they THINK might happen even as far back as 2007.More NZ Radar Detector FAQs