Tokoroa police arrested and charged a man with indecent assault after receiving a complaint from a member of the public.
Police say the man has been indecent in men and women under the pretext of curing cancer in New Zealand, Australia and some Pacific islands.
He was due to appear in the Tokoroa District Court on Tuesday, June 25.
Police believed there could be other victims who still had to introduce themselves.
Police said in a statement they encouraged anyone with information to introduce themselves and contact Sergeant Mihi Owen in Tokoroa Police on 07 885 0100 or the 105 police emergency number.
Any information provided to the police would be treated confidentially.