Where the power is conferred on a judge, rather than on a court, it will be a question whether the distinction was deliberate, and whether the reference to "judge" rather than to "court" indicates that the power was intended to be invested in the judge as an individual who, because he is a judge, possesses the necessary qualifications to exercise it. Even if it were to be assumed that the fact that the power conferred by s 20 is conferred on "a Judge" gives rise to a prima facie presumption that it is conferred on the judge as such, and that he will determine it as a member of the court to which he belongs, we consider that there are sufficient indications in the statute to rebut that presumption.
Their Honours considered that when the Act referred to judges of the Supreme Courts "in respect of whom an appropriate arrangement" had been made, the Parliament was intending to confer power on individual judges. In the case of judges of the Federal Court, the majority held it was "unlikely that the Parliament intended in other cases to refer to the judge as such and to confer power on the court". Further, as the nature of the power conferred by s 20 is "purely administrative and not incidental to the exercise of judicial power", their Honours thought it likely that Parliament intended the power to be exercised by a judge as a designated person. Finally, as the judge made no order as such and nothing that he did was enforced under the Federal Court of Australia Act 1976 Cth, the power was vested in a judge as persona designata. Mason and Deane JJ, on the other hand, were of the view that the Act vested power in the Federal Court judges as such. The power was conferred upon all judges of the Federal Court indiscriminately [27] . Mason and Deane JJ construed the Act in accordance with the principle on which the Court had acted in Medical Board (Vict) v Meyer [28] and Aston v Irvine [29] and held that the power was conferred on every judge as a member of the court. Their Honours accepted that a non-judicial power could be vested in a judge as a designated person but, in their Honours' view [30] -
to enable such a conclusion to be reached it must appear that in the performance of the function entrusted to him the judge is intended to act personally, detached from the court of which he is a member (cf Queen Victoria Memorial Hospital v Thornton [31] ), so that the reference to the judge's judicial office is then seen not as a statement of the character in which the function is to be exercised, but as a qualification of his becoming a repository of the function.
By repealing s 18 and inserting s 6D in 1987, the Parliament eliminated the indiscriminate conferral of power on all judges of the Federal Court and thereby sought to overcome a factor which Mason and Deane JJ had regarded as a source of invalidity. The 1987 Amendment also repealed s 20 and inserted in its place a number of provisions which conferred on an "eligible Judge" (as defined by s 6D) powers to issue warrants authorising, inter alia, interceptions of communications (ss 45, 46). Those powers are now expressed to be conferred not on all judges of the Federal Court but only on "a person who is" a judge of a court created by the Parliament (s 6D(1)) and who has consented to be nominated as an eligible judge (s 6D(2)) and who has been declared by the Minister to be an eligible judge (s 6D(3)). The Act as it now stands, in comparison with the Act as it stood when considered in Hilton v Wells, contains even clearer indicia showing that the power to issue interception warrants is conferred on judges as designated persons and not on the courts of which eligible judges are members. In Jones v The Commonwealth [32] , this Court refused to reconsider its decision in Hilton v Wells, saying:
The power to overrule a previous decision should be exercised with great caution. Continuity and coherence in the law demand that in this Court the principle of stare decisis should ordinarily be applied. Moreover Hilton v Wells is a very recent decision.
Jones v The Commonwealth related to the Act as it stood before the 1987 Amendment. As the Parliament in enacting the 1987 Amendment sought to overcome some of the objections raised by the minority to the interpretation of the Act expressed by the majority in Hilton v Wells, Parliament's intention is now too clear to mistake. The power is conferred on each eligible judge as a designated person, "detached from the court of which he [or she] is a member".
1. See Hilton (1985) 157 CLR 57 at 69, 78.
2. (1956) 94 CLR 254; (1957) 95 CLR 529; [1957] AC 288.
3. Jones v The Commonwealth (1987) 61 ALJR 348 at 349; 71 ALR 497 at 498-499.
4. Hilton (1985) 157 CLR 57 at 72-73.
5. Hilton v Wells (1985) 157 CLR 57 at 81.
6. (1937) 58 CLR 62 at 97.
7. (1955) 92 CLR 353 at 366.
8. Hilton (1985) 157 CLR 57 at 80-81. And see R v Federal Court of Bankruptcy; Ex parte Lowenstein (1938) 59 CLR 556 at 566-567; Drake v Minister for Immigration and Ethnic Affairs (1979) 46 FLR 409 at 413; 24 ALR 577 at 583-584.
9. (1953) 87 CLR 144 at 152.
10. (1987) 61 ALJR 348 at 349; 71 ALR 497 at 498.