"Anyone who wishes to come forward and speak with us can be assured they can do so in confidence.
"Any information which is given to us will be assessed to determine what further steps may be required from a police perspective, particularly appropriate support which can be offered to individuals."
Anihera Zhou Black made the allegations against her husband in a video posted on Saturday afternoon.
"I wondered why Awa invited so many young people through our home over the years and I thought it was to be a good aunty and uncle. I know differently now.
"He became a predator, a recruiter, a teacher, a pimp, a ringleader of one of the many child-adult sex rings here in his beloved Tauranga Moana and he took that s*** nationwide with all his contacts in every stream of life.
"They would recruit the innocent ... share them around like a box of beer, consume every last drop and discarding the empty vessels into the gutter, soulless, cold and broken."
The couple were married for 26 years.