Ng v The Queen (2003) 217 CLR 521 at [9] applying Brownlee v The Queen (2001) 207 CLR 278 esp at [6]-[7], [21]-[22], [33]-[34], [52]-[57]. The reference to "essential features" was first used by O'Connor J in Huddart, Parker & Co Pty Ltd v Moorehead (1909) 8 CLR 330 at 375 and applied to s80 in the joint judgment in Cheatle v The Queen (1993) 177 CLR 541 at 549, 560.
54 The passage in Ng is, in my opinion, equally applicable to the constitutional expression "court of a State" in s77(iii). A similar approach, referring to "essential features", and allowing for "subsequent development" after the date of federation, was also applied to the constitutional writs in s75(v). See Ex parte Aala supra at [24]-[25] and [34].
55 A significant indicator of the content of the constitutional expression "court of a State" is found in s79 of the Constitution which provides:
"79 The federal jurisdiction of any court may be exercised by such number of judges as the Parliament prescribes."
56 Section 79 reflects the history of common law courts where proceedings at first instance, not only appeals, had been heard by a number of judges sitting in banc.
57 Section 72 of the Constitution assumes that a federal court will be composed of judges, when it commences:
"72 The Justices of the High Court and of the other courts created by the Parliament:
…"
58 Similarly, s79 assumes that a "court of a State", like any other court exercising the judicial power of the Commonwealth, will be composed of "judges".
59 As suggested by s79 of the Constitution, it is, in my opinion, an essential feature of a court, as that word is used in Chapter III, that it be an institution composed of judges. (See, e.g. British Imperial Oil Co Ltd v Federal Commissioner of Taxation (1925) 35 CLR 422 at 444; Victorian Stevedoring and General Contracting Co Pty Ltd v Dignan (1931) 46 CLR 73 at 116; The Queen v Davison (1954) 90 CLR 353 at 365.2; R v Kirby; Ex parte Boilermakers' Society of Australia (1956) 94 CLR 254 at 270; Harris v Caladine (1991) 172 CLR 84 at 94, 108, 116, 121.)
60 In Le Mesurier v Connor (1929) 42 CLR 481, when considering the meaning of the expression "court of a State" in s77(iii), (see at p510.6; p511.6), Isaacs J said at p511.2:
"A Court consists, then, of the Judges, and of them only."
61 To similar effect is the observation of Jordan CJ, referring to a new federal court, in Ex parte Coorey (1945) 45 SR (NSW) 287 at 302 (et seq):
"The essential factor which brings the new court into actual existence as an operative entity is the appointment of a Judge or Judges."
62 In Kotsis v Kotsis (1971) 122 CLR 69 at 91, Windeyer J said that the word "court" in s77(iii) means "an existing institution, an organisation for the administration of justice, consisting of judges and with ministerial officers having specified functions". This definition was adopted in HCF at 60 per Mason J and in Harris v Caladine supra at 92 per Mason CJ and Deane J It was also quoted by Gibbs CJ in HCF at p58. Windeyer J's focus on an "institution … consisting of judges" should be regarded as authoritative.
63 The powers of a court, including the judicial power of the Commonwealth, may be exercised by the non-judicial officers of a court. (See HCF supra, Harris v Caladine supra.) However, the performance of such functions, in the case of a federal court must be subject to effective control by judges. (See Harris v Caladine at 94, 95, 121-122, 149.) The Full Court of the Supreme Court of Western Australia has applied this principle, in my view correctly, to a State court exercising federal jurisdiction. (See Newman v A (1992) 16 Fam LR 209 esp at 211, 215.)
64 Restrictions on the power of delegation must exist before an institution can "properly be described as a court" (per Gaudron J in Harris v Caladine at 149), or before it can "properly be said that, as a practical as well as a theoretical matter, the judges constitute the court" (at 95 per Mason CJ and Deane J). Some such restriction was, and is, an essential feature of a "court of a State", within s77(iii).
65 The membership of the Tribunal, or of the Retail Leases Division if it were appropriate to consider it separately, is not predominantly composed of judges. The Tribunal is not a "court of a State" within s86(2) of the Trade Practices Act.
66 I would have reached the same conclusion if I had engaged in the process of balancing the two lists of considerations in the way I have identified above. However, the constitutional requirement is, in the context of Commonwealth legislation, entitled to primacy.
67 My above analysis is not consistent with the reasoning of Heerey J in Commonwealth v Wood (2006) 148 FCR 276. His Honour does not consider the constitutional case law in the way I have done.
68 In the course of considering the weight to be given to the absence of security of tenure Heerey J said:
"[72] In Bradley at [35]-[38] McHugh, Gummow, Kirby, Hayne, Callinan and Heydon JJ pointed out that, until quite recent times in Australia, State and Territory summary courts have been constituted by members of the public service and subject to the regulation and discipline inherent in that position. One might add that this circumstance is explicitly recognised in s 39(2)(d) of the Judiciary Act . The federal jurisdiction of a court of summary jurisdiction of a State shall not be judicially exercised except by a Stipendiary or Police or Special Magistrate or "some Magistrate of the State who is specially authorized by the Governor-General to exercise such jurisdiction". At the time the Judiciary Act was passed, such magistrates would have been salaried officials, as distinct from honorary justices of the peace, and members of their State public service, with nothing like Act of Settlement tenure. (And, as late as the 1970s Stipendiary and Police Magistrates in some States were not required to be lawyers.) Moreover, the fact that Parliament thought it necessary to impose such a condition suggests that at the time of the drafting of the Constitution a few years earlier it was contemplated that even honorary justices, who had no security of tenure at all, would, in the absence of such a condition, constitute a court of a State."
69 As I have noted above, the meaning of a constitutional expression is not fixed as at 1900, save with respect to essential features. Institutions referred to in the Constitution had, to the knowledge of the drafters, developed and changed over time, were continuing to develop at the time of federation and were expected to continue to develop thereafter. It may well be that a magistrates' court composed of persons who held such office in 1900 would no longer be regarded as a "court of a State" within s77(iii), just as a jury which excluded women would no longer satisfy the requirements of s80. (See Cheatle supra at 560-561.)
70 The appeal should be allowed.