A recidivist rapist who attacked South Auckland women in their homes at night while brandishing a knife has been refused an early release from prison.

William Boyd Mokaraka was sentenced to preventive detention on in July 1999 after he was convicted of numerous charges relating to three attacks.

Two of the women were unknown to him.

Those convictions followed a conviction for rape in 1991.


Mokoraka appeared before the Parole Board on November 8 but his bid for freedom was rejected.

He has been refused parole a number of times in the past.

In a decision released to the Herald this morning the board revealed Mokoraka had been "engaged on a reintegration pathway for several years".

But it had not been a "smooth" path for the sex offender.

"There have been difficulties with Mr Mokaraka proposing a coherent release plan that has been assessed as appropriate to mitigate his risk," said board panel convenor Neville Trendle.

"That risk has been assessed as either at moderate to high or medium in relation to sexual offending and moderate for general offending."

He said Mokoraka had not been able to provide an address suitable for his release.

Trendle said a report submitted to the board assessed Mokaraka's release plan as "sufficient to mitigate his risk of sexual re-offending if the proposed release address is approved by Community Corrections".

But the current address proposed was not suitable.

He said Mokoraka appeared before the board in May and since then, he had participated in a "reintegration hui".

But he had more work to do.

"The psychological memorandum before the Board recommended that Mr Mokaraka engage with psychological treatment and support," Trendle said.

"That process should involve his support network and the need for him to engage with them to develop his release and relapse prevention plan.

"Should (an) address be assessed as suitable, that recommendation seems to us to be an appropriate next step."

Trendle said the Mokoraka had been suspended from the prison's release-to-work programme last year due to concerns from the "multi-disciplinary team".

"Time spent reviewing the issues behind those concerns with the psychologist seems to us to be necessary and would be also of value to Mr Mokaraka's reintegration," Trendle said.

"The Board supports his return to release to work for the testing and consolidation that such activity provides."

He said parole simply could not be granted until Mokoraka had "satisfactorily completed" those activities.

He will appear again before the board in August.