What does extended supervision mean?

Stuff reports:

The high risk sex offender dubbed ‘The Beast of Blenheim’, Stewart Murray Wilson, will stay under extended supervision for the maximum 10 years after his prison sentence ends and his parole term expires.

The order was imposed by Justice Graham Lang in a written decision issued in the High Court at Christchurch today, a week after he heard a day of legal argument.

He described Wilson as presenting “a rare and special case” and said: “He will remain at risk of offending against young females well beyond the expiry of his release conditions.

“An extended supervision order is therefore necessary, in my view, to achieve the statutory objective of protecting such persons from the risk of further offending in the future by Mr Wilson.”

Does anyone know exactly what extended supervision involves? How often can he be checked up on?

In 1995, a jury found Wilson guilty on seven charges of rape, one charge of attempted rape, two charges of ill-treatment of children, one charge of bestiality, one charge of attempting to stupefy and two of stupefying, three of assault on a woman, and six of indecent assault.

Many of the charges were laid as representative charges, indicating the offences had been committed more than once.

Wilson was jailed for 21 years in 1996 and has remained in custody even though he became eligible for parole some time ago because the Parole Board considers he presents a high risk of re-offending.

In hindsight 21 years was not enough.