New South Wales v Kable

The case involved the State of New South Wales as the appellant and Gregory Wayne Kable as the respondent. The dispute concerned damages sought by Mr Kable for false imprisonment, arising from his detention pursuant to an order made by the Supreme Court of New South Wales under the *Community Protection Act 1994* (NSW). This Act was subsequently found to be invalid. The High Court of Australia was required to determine whether the Supreme Court's order provided lawful authority for Mr Kable's detention, despite the invalidity of the underlying legislation.

The central legal issues before the High Court were whether an order made by a superior court of record, such as the Supreme Court of New South Wales, should be treated as valid until set aside, and whether officers of the appellant could rely on such an order as lawful authority for detention, even if the legislation under which it was made was later declared invalid. The Court also considered the nature of judicial power and the effect of decisions made in its exercise within a developed legal system.

The High Court reasoned that in any developed legal system, decisions made in the exercise of judicial power must be given effect, at least until they are set aside or reversed. This principle is fundamental to the operation of the courts and the administration of justice. The Court held that orders of a superior court of record are valid until set aside. If this were not the case, judicial orders would have only provisional effect, creating uncertainty for both individuals affected by the orders and the executive branches of government. The Court concluded that Mr Kable was detained pursuant to an order that was valid during the period of his detention, as it had not been set aside at that time. Therefore, the order provided lawful authority for his detention.

Consequently, the High Court allowed the appeal, setting aside the orders of the Court of Appeal of the Supreme Court of New South Wales. The appeal to that Court was dismissed with costs, and the State of New South Wales was ordered to pay Mr Kable's costs of the application for special leave to appeal and of the appeal to the High Court.