Graham v Minister for Immigration and Border Protection

The case of *Graham v Minister for Immigration and Border Protection* involved a challenge to the validity of certain provisions of the *Migration Act 1958* (Cth), specifically sections 501(3) and 503A(2), and the subsequent cancellation of a visa. The central dispute concerned whether these provisions, particularly section 503A(2) which restricts the disclosure of certain information, impermissibly interfered with the essential functions of federal courts, including the High Court and the Federal Court, in exercising their judicial power and their constitutional jurisdiction under section 75(v). The matter was heard by the High Court of Australia.

The legal issues before the Court included whether sections 501(3) and 503A(2) of the *Migration Act* were invalid on the grounds that they required federal courts to exercise judicial power in a manner inconsistent with the essential character of a court, or that they unduly limited the ability of affected persons to seek relief under section 75(v) of the Constitution. Additionally, the Court considered whether the Minister's decision to cancel the plaintiff's visa was invalid due to an erroneous construction of section 503A(2) or a failure to make necessary findings regarding the "national interest" in the context of visa cancellation.

The Court determined that section 501(3) of the *Migration Act* was not invalid. However, section 503A(2) was found to be invalid to the extent that it would prevent the Minister from being required to divulge or communicate information to the High Court when exercising jurisdiction under section 75(v), or to the Federal Court when exercising jurisdiction under section 476A of the *Migration Act*, where that information was relevant to a review of the Minister's purported exercise of power under sections 501, 501A, 501B, or 501C. The Court also found that the Minister's decision to cancel the plaintiff's visa was invalid because the Minister had acted on a wrong construction of section 503A(2). Consequently, the Court ordered that a writ of certiorari quash the Minister's decision and a writ of prohibition prevent action on that decision, with the Minister to pay the costs of the special case and the proceeding.