The legal requirements
5 Section 3 of the Act provides:
(1) The primary object of this Act is to provide for the extended supervision and continuing detention of serious sex offenders so as to ensure the safety and protection of the community.
(2) Another object of this Act is to encourage serious sex offenders to undertake rehabilitation
6 Section 6 of the Act is in the following terms:
(1) The State of New South Wales may apply to the Supreme Court for an extended supervision order against a sex offender who, when the application is made, is in custody or under supervision:
(a) while serving a sentence of imprisonment:
(i) for a serious sex offence, or
(ii) for an offence of a sexual nature,
whether the sentence is being served by way of full-time, periodic or home detention and whether the offender is in custody or on release on parole, or
(b) pursuant to an existing extended supervision order or continuing detention order,
referred to in this Part as his or her current custody or supervision .
(2) An application may not be made until the last 6 months of the offender's current custody or supervision.
(3) An application must be supported by documentation:
(a) that addresses each of the matters referred to in section 9 (3), and
(b) that includes a report (prepared by a qualified psychiatrist, registered psychologist or registered medical practitioner) that assesses the likelihood of the offender committing a further serious sex offence.
(4) An application may indicate the kinds of conditions that are considered to be appropriate for inclusion under section 11 in the event that an extended supervision order is made.
7 Section 9 of the Act is in the following terms:
(1) The Supreme Court may determine an application for an extended supervision order:
(a) by making an extended supervision order, or
(b) by dismissing the application.
(2) An extended supervision order may be made if and only if the Supreme Court is satisfied to a high degree of probability that the offender is likely to commit a further serious sex offence if he or she is not kept under supervision.
(3) In determining whether or not to make an extended supervision order, the Supreme Court must have regard to the following matters in addition to any other matter it considers relevant:
(a) the safety of the community,
(b) the reports received from the persons appointed under section 7 (4) to conduct examinations of the offender, and the level of the offender's participation in any such examination,
(c) the results of any other assessment prepared by a qualified psychiatrist, registered psychologist or registered medical practitioner as to the likelihood of the offender committing a further serious sex offence, the willingness of the offender to participate in any such assessment, and the level of the offender's participation in any such assessment,
(d) the results of any statistical or other assessment as to the likelihood of persons with histories and characteristics similar to those of the offender committing a further serious sex offence,
(e) any treatment or rehabilitation programs in which the offender has had an opportunity to participate, the willingness of the offender to participate in any such programs, and the level of the offender's participation in any such programs,
(f) the level of the offender's compliance with any obligations to which he or she is or has been subject while on release on parole or while subject to an earlier extended supervision order,
(g) the level of the offender's compliance with any obligations to which he or she is or has been subject under the Child Protection (Offenders Registration) Act 2000 or the Child Protection (Offenders Prohibition Orders) Act 2004 ,
(h) the offender's criminal history (including prior convictions and findings of guilt in respect of offences committed in New South Wales or elsewhere), and any pattern of offending behaviour disclosed by that history,
(i) any other information that is available as to the likelihood that the offender will in future commit offences of a sexual nature.
8 It is clear that s 6 authorises the making of an application for an extended supervision order. The court's power to make such an order derives from s 9(1)(a) of the Act. The test which the court must apply is identified in s 9(2). In Russell (supra) Johnson J made the following observations about the manner in which the test has been interpreted:
The words "satisfied to a high degree of probability" constitute the statutory standard of proof which is higher than the civil standard, but lower than the criminal standard: Attorney General for the State of New South Wales v Tillman [2007] NSWSC 605 at [27]; Tillman at [5], [18] (Court of Appeal). (the reference is [2007] NSWCA 119).