(i) The problem
40 Under the old law, it would have followed from the above conclusions that the decision of the Tribunal must be set aside and the matter remitted to the Tribunal for redetermination. However, as the application for review of the Tribunal's decision was made after 2 October 2001, it is necessary to consider whether that course is open to the Court, having regard to the legislative amendments concerning judicial review ("the 2001 amendments") that took effect that day.
41 The pivotal provision is the new s 474 of the Migration Act 1958. This section is contained in Part 8 of the Act, headed "Judicial Review". Division 1 of that Part contains only s 474, subss (1) and (2) of which read as follows:
"(1) A privative clause decision:
(a) is final and conclusive; and
(b) must not be challenged, appealed against, reviewed, quashed or called in question in any court; and
(c) is not subject to prohibition, mandamus, injunction, declaration or certiorari in any court on any account.
(2) In this section:
privative clause decision means a decision of an administrative character made, proposed to be made, or required to be made, as the case may be, under this Act or under a regulation or other instrument made under this Act (whether in the exercise of a discretion or not), other than a decision referred to in subsection (4) or (5)."
42 Subsection (3) sets out a list of the types of decision that may be a "privative clause decision". The list includes "refusing to give a certificate, direction, approval, consent or permission (including a visa)".
43 Subsection (4) lists decisions under various sections of the Act that are not privative clause decisions. None of the listed sections is relevant to this case.
44 Subsection (5) empowers the making of regulations listing other non-privative clause decisions. No relevant regulation has been made.
45 Under these circumstances, obviously, a visa refusal decision of the Tribunal falls within the definition of "privative clause decision". Notwithstanding this fact, and the apparent comprehensiveness of s 474(1), it is clear there are circumstances under which a legal challenge may be made against a decision refusing a visa. Indeed the Act recognises this. Division 2 of Part 8 is headed "Provisions Relating to Privative Clause Decisions". It prescribes procedures applicable to proceedings in respect of a privative clause decision. Although s 476 provides that the Federal Court and the Federal Magistrates Court "do not have any jurisdiction" in respect of some specified privative decisions (not including a decision of the Tribunal refusing a visa application), s 475A says this section does not affect the jurisdiction of the Federal Court, under s 39B or s 44 of the Judiciary Act 1903 or s 39 of the Federal Magistrates Act 1999, in relation to "a privative clause decision that is a decision made on a review by a Tribunal under Part 5 or 7 or section 500" or "another decision in respect of which the court's jurisdiction is not excluded by section 476". Moreover, s 477 provides that an application to either court, under s 39B of the Judiciary Act, for a writ of mandamus, prohibition or certiorari or an injunction or a declaration in respect of a decision not excluded by s 476, must be made to the relevant court within 28 days of the notification of the decision. Section 478 specifies who may make such an application and ss 479 and 480 deal with other parties and intervention. Section 483A gives the Federal Magistrates Court the same jurisdiction as the Federal Court in relation to a matter arising under the Act. Section 484(1) makes the "jurisdiction of the Federal Court and the Federal Magistrate's Court in relation to privative clause decisions" exclusive of the jurisdiction of all other courts, other than the jurisdiction of the High Court of Australia under s 75 of the Constitution.
46 The apparent contradiction between Division 1 and Division 2 of Part 8 of the Migration Act seems to stem from Parliament's awareness of the terms of s 75(v) of the Constitution. That paragraph gives to the High Court original jurisdiction in "all matters in which a writ of Mandamus or prohibition or an injunction is sought against an officer of the Commonwealth". A Minister is, of course, an officer of the Commonwealth. The situation was explained by Dixon J in The King v Hickman; Ex parte Fox and Clinton (1945) 70 CLR 598 at 614-615.
"The jurisdiction of this Court under s. 75(v.) of the Constitution is invoked upon the footing that the Board are officers of the Commonwealth and are persons to whom a writ of prohibition lies. Regulation 17 provides that a decision of a Local Reference Board shall not be challenged, appealed against, quashed or called into question, or be subject to prohibition, mandamus or injunction, in any court on any account whatever. The presence of this provision in the Regulations makes it necessary to say whether and to what extent it is ineffectual to protect the decision of the Board from invalidation. In the first place, it is clear that such a provision cannot, under the Constitution, affect the jurisdiction of this Court to grant a writ of prohibition against officers of the Commonwealth when the legal situation requires that remedy. But a writ of prohibition is a remedy that lies only to restrain persons acting judicially from exceeding their power or authority. It is therefore necessary to ascertain before issuing a writ whether the persons or body against which it is sought are acting in excess of their powers; and that means whether their determination, when made, would be void. The Board derives its power from Regulations of which reg. 17 forms a part, and that regulation must be taken into account in ascertaining what are the true limits of the authority of the Board, and whether its decision is void.
… Both under Commonwealth law, and in jurisdictions where there is a unitary constitution, the interpretation of provisions of the general nature of reg. 17 is well established. They are not interpreted as meaning to set at large the courts or other judicial bodies to whose decision they relate. Such a clause is interpreted as meaning that no decision which is in fact given by the body concerned shall be invalidated on the ground that it has not conformed to the requirements governing its proceedings or the exercise of its authority or has not confined its acts within the limits laid down by the instrument giving it authority, provided always that its decision is a bona fide attempt to exercise its power, that it relates to the subject matter of the legislation, and that it is reasonably capable of reference to the power given to the body." (Emphasis added)
47 The three conditions stated by Dixon J in the emphasised proviso in this passage have often been called "the Hickman conditions". In several decisions since Hickman, the High Court has affirmed the statement of Dixon J; sometimes with elaboration. Thus in Darling Casino Ltd v New South Wales Casino Control Authority (1997) 191 CLR 602 (a case that arose under State, not federal, law) Gaudron and Gummow JJ referred at 632 to the distinction between power and jurisdiction. They pointed out that s 75(v) of the Constitution confers "jurisdiction" in "all matters" in respect of which mandamus, prohibition or an injunction is sought against an officer of the Commonwealth. Their Honours went on, at 633:
"Mandamus and prohibition are remedies which are granted in cases of jurisdictional error - refusal to exercise jurisdiction, in the case of mandamus, and excess of jurisdiction, in the case of prohibition. The terms of s 75(v) would be defeated if a privative clause operated to protect against jurisdictional errors being refusal to exercise jurisdiction, or excess of jurisdiction, in the latter case whether by reason of the constitutional invalidity of the law relied upon or the limited terms of a valid law. However, there is no constitutional reason, in our view, why a privative clause might not protect against errors of other kinds by, within the limits of the relevant legislative powers, operating to alter the substantive law to ensure that the impugned decision or conduct or refusal or failure to exercise a power is in fact valid and lawful." (Emphasis added)