Knight v State of Victoria

In the case of Knight v State of Victoria, the applicant, Knight, challenged the validity of a tobacco levy imposed on tobacco products sold to prisoners by the State of Victoria. The levy was initially implemented following a decision made in 1993, which was later challenged and found invalid due to the uncertainty of the decision-maker. The applicant argued that the tobacco levy was an excise and that its imposition violated the principles of the Constitution, particularly s 90, which prohibits the imposition of excise duties without unanimous agreement from the States. Additionally, the applicant contended that the remedial legislation, s 112C(2), infringed upon the principles set out in Kirk v Industrial Court of New South Wales and Kable v Director of Public Prosecutions, impairing the independence of the Supreme Court.

The legal issues before the court involved the interpretation of s 112C(2) of the Corrections Act 1986 (Vic) and whether it was compatible with Ch III of the Constitution. The applicant argued that the section's language, "was validly imposed", provided immunity from challenge and thus, contravened the principles of judicial independence. The respondents, on the other hand, submitted that s 112C(2) did not confer any privative effect, nor did it impair the independence of the Supreme Court. The court was required to determine whether the applicant's arguments had merit and whether the remedial legislation was consistent with the Constitution.

The court found that the applicant's arguments were without merit. The court held that s 112C(2) did not confer any privative effect, and therefore, could not be construed as insulating the 1993 decision or subsequent decisions from judicial review. The court also found that there was no impairment of the independence of the Supreme Court, as the section did not confer any functions on the court. The court relied on the principles set out in Kirk and Plaintiff S157/2002 v Commonwealth to conclude that statutory language would not be construed in a way that permitted the legislature to insulate decisions from judicial scrutiny.

The court dismissed the applicant's claims, and the appeal was accordingly dismissed. The orders of the court were that the applicant pay the respondents' costs of the proceeding in the Supreme Court and of the appeal.