KEY POINTS:
The man known as "The Beast of Blenheim" will stay in prison for at least another four years because he is too dangerous to be released before then, the Parole Board has decided.
The decision will be reviewed every six months, as required by law.
The board decided to keep Stewart Murray Wilson, now 62, behind bars beyond his release date of December 2 this year.
Wilson was convicted and sentenced to 21 years in prison in 1996 for rape, attempted rape, indecent assault, stupefying, bestiality and wilful ill treatment of a child.
His applicable release date is September 1 2012 and his sentence ends on December 2, 2015 when he must be released.
Because he was sentenced prior to 2002, a law change required he be released after serving two-thirds of his sentence. That would have meant he would have been released earlier this month.
However, the Department of Corrections applied to the Parole Board to keep him beyond that.
The Parole Board, in its reasons behind the decision released today, said that he would likely reoffend before his release date.
Wilson refused a formal examination by a psychologist, who had to assess him based on file information.
The psychologist analysed Wilson's likelihood of criminal and sexual recidivism and psychopathic tendencies.
Wilson scored highly in a sexual recidivism test and those with similar scores were found to have a 46 per cent likelihood of being reconvicted of a further sexual offence within five years.
Wilson denied his offending and refused to take any treatment in prison
The board said Wilson made contradictory statements about counselling and admitting his guilt.
"Mr Wilson has done nothing to ameliorate his high risk. He continues to deny his sexual offending and refuses to engage in any form of offence related treatment."
The board took into account the sentencing judge saying Wilson's victims were often vulnerable.
"Once a relationship was established they were subjected to cruel and degrading treatment. They were subject to assaults, indecencies and often raped."
Wilson took control of their lives to an extraordinary degree, the judge had said.
The board said Wilson had no confirmed accommodation and it was clear Wilson could not live with the woman who was named as a support person.
"His named support person is said to be serving a community-based sentence and have a history of mental disability."
- NZPA
