Local chapters have sprung up of the Mongols, Bandidos and the Comancheros. Detective Sergeant Ray Sunkel said the Australian imports are harder and bring a more violent mindset. Following arrests targeting the Mongols motorbike gang in Bay of Plenty earlier this year, community advocate and lifetime Black Power member Dennis O'Reilly said that gangs like the Mongols, established by people deported from Australia, operated on an entirely different basis to the gangs New Zealanders were accustomed to seeing. "They're all New Zealanders by dint of having been exported here under 501, but they're not playing the game," he said. Police have admitted they are facing challenges in fighting organised crime and gangs.