On 15 and 16 October 2007, the New Zealand Police conducted a series of armed raids in response to alleged paramilitary training camps in the Urewera mountain range near the town of Ruatoki. About 300 police, including members of the Armed Offenders Squad and Special Tactics Group, were involved in the raids, which involved the execution of search warrants at various addresses throughout New Zealand, and the establishment of roadblocks at Ruatoki and Tāneatua. The police seized four guns and 230 rounds of ammunition and arrested eighteen people. According to police, the raids were a culmination of more than a year of surveillance that uncovered and monitored the training camps.
The police were investigating potential breaches of the Terrorism Suppression Act.