Police are threatening to post phoney messages about fictitious breath testing check points on Facebook pages set up to help drunk drivers avoid being caught.
The pages reveal locations of local police drink driving checkpoints.
But police say residents visiting the pages could be given false information - maybe by police themselves.
The pages, which were called Rotorua Police Stop Locations and BOP Police Stop Locations, had run only for a short time before being shut down over the weekend. The Rotorua-based page gained more than 300 likes and the Bay of Plenty page had more than 1000.
Posts by the creators stated the pages were designed to inform people of drink driving checkpoints and also speed camera locations.