Reasoning
41 The constitutional significance of the concept of a 'matter' was conveniently summarised by the Full Federal Court in Hooper v Kirella (1999) 96 FCR 1, at 12 [41]-[44], as follows:
'Section 71 of the Constitution vests the judicial power of the Commonwealth in the High Court of Australia, such other federal courts as the Parliament creates and such other courts as it invests with federal jurisdiction. Section 75 specifies the constitutionally conferred original jurisdiction of the High Court. Section 76 provides that the Parliament may make laws conferring original jurisdiction on the High Court, inter alia, in any matter:
"(ii) Arising under any laws made by Parliament."
Section 77, provides, relevantly, as follows:
"With respect to any of the matters mentioned in the last two sections the Parliament may make laws -
(i) Defining the jurisdiction of any federal court other than the High Court."
The Federal Court of Australia is created by s 5(1) of the Federal Court Act. The Court is a superior court of record and is a court of law and equity: s 5(2). Section 19(1) … provides as follows:
"19(1) The Court has such original jurisdiction as is vested in it by laws made by the Parliament."
The Court has power, in relation to matters in which it has jurisdiction, to make orders of such kinds, including interlocutory orders as the Court thinks appropriate: s 23.
…
The Judiciary Act confers original jurisdiction on the Federal Court. Section 39B(1A) … provides as follows:
"(1A) The original jurisdiction of the Federal Court of Australia also includes jurisdiction in any matter:
…
(c) arising under any laws made by the Parliament."'
(Emphasis added.)
42 Section 21 of the Federal Court Act, to which reference has already been made, empowers the Court, in relation to a matter in which it has original jurisdiction, to make binding declarations of right, whether or not any consequential relief is claimed.
43 It is important in the present context to appreciate that there is a distinction between a 'matter' and the legal proceedings in which the matter is determined. The principal authorities are referred to in Hooper v Kirella, at 14-16 [50]-[55]. It is sufficient for present purposes to quote from the joint judgment of Mason, Wilson, Brennan, Deane and Dawson JJin Crouch v Commissioner for Railways (Queensland) (1985) 159 CLR 22, at 37:
'It is now established that the word "matter" in s. 75 of the Constitution is not synonymous with a legal proceeding. It was said by Knox C.J., Gavan Duffy, Powers, Rich and Starke JJ. in In re Judiciary and Navigation Acts [(1921) 29 CLR 257, at 266, 265] (respectively) that the "word 'matter' is used several times in Ch. III of the Constitution (ss. 73, 74, 75, 76, 77), and always … with the same meaning" and that the word, as so used, means not a legal proceeding "but rather the subject-matter for determination in a legal proceeding". That general meaning of the word "matter" has been accepted in subsequent cases … It should, in our view, be accepted as the settled prima facie meaning of the word in Ch. III of the Constitution. … [H]owever, it has been recognized that the meaning of the word "matter" within Ch. III, particularly as used with reference to the various paragraphs of s. 75, "must be affected by the context in each case where it is used" …
When the word "matter" is used in Ch. III of the Constitution in its ordinary prima facie sense of the subject matter for determination in a legal proceeding rather than the legal proceeding itself, it focuses attention upon the substance of the dispute. As so used, the word is a word of wide connotation: it is, and was in 1900, "the widest term to denote controversies which might come before a Court of Justice" per Griffith CJ, South Australia v Victoria [(1911) 12 CLR 667, at 675].' (Some citations omitted.)
44 The distinction between a 'matter' and legal proceedings is illustrated by the decision of the High Court in Re Wakim; Ex parte McNally (1999) 198 CLR 511. A creditor of a bankrupt brought proceedings in the Federal Court against the Official Trustee. The creditor sought compensation, pursuant to provisions of the Bankruptcy Act 1966 (Cth), by reason of the Official Trustee's alleged breaches of duty. The creditor then brought two separate proceedings in the Federal Court against, respectively, a barrister and a firm of solicitors. Each of these proceedings was founded on alleged breaches of duty, but neither involved a claim arising under a law made by the Commonwealth Parliament. Viewed in isolation, therefore, neither claim involved the exercise of federal jurisdiction.
45 The question before the High Court was whether the two separate proceedings against the legal representatives fell within the accrued jurisdiction of the Federal Court. Gummow and Hayne JJ (with whom Gleeson CJ and Gaudron J agreed) accepted (at 584) that the bringing of three separate proceedings would ordinarily suggest that there was more than one matter. If that were so, the question of jurisdiction would have to be resolved separately in each proceeding. However, their Honours considered (at 585 [138]-[139]) that the authorities had established that:
'the identification of the justiciable controversy between parties is not determined only by the considerations of there being separate proceedings and different parties in the one court. And in some circumstances a single matter can proceed through more than one court. That follows from the Court's decision in R v Murphy [(1985) 158 CLR 596 at 614, 617-618, per Gibbs CJ, Mason, Wilson, Brennan, Deane and Dawson JJ]. There, committal proceedings in one court and the trial of indictable offence in another court (there having been an order for committal and the presentation of an indictment) were held to be the curial process for determination of a single matter: the matter which the trial would ultimately determine.
The central task is to identify the justiciable controversy. In civil proceedings that will ordinarily require close attention to the pleadings (if any) and to the factual basis of each claim.'
46 Gummow and Hayne JJ noted (at 585 [140]) that the joint judgment in Fencott v Muller (1983) 152 CLR 570, had observed (at 608) that, in the end, it was a matter of:
'impression and of practical judgment whether a non-federal claim and a federal claim joined in a proceeding are within the scope of one controversy and thus within the ambit of a matter.'
47 Gummow and Hayne JJ pointed out (at 585-586 [140]) that:
'the references to "impression" and "practical judgment" cannot be understood, however, as stating a test that is to be applied. Considerations of impression and practical judgment are relevant because the question of jurisdiction usually arises before evidence is adduced and often before the pleadings are complete. Necessarily, then, the question will have to be decided on limited information. But the question is not at large. What is a single controversy "depends on what the parties have done, the relationships between or among them and the laws which attach rights or liabilities to their conduct and relationships". There is but a single matter if different claims arise out of "common transactions and facts" or "a common substratum of facts", notwithstanding that the facts upon which the claims depend "do not wholly coincide". So, too, there is but one matter where different claims are so related that the determination of one is essential to the determination of the other, as, for example, in the case of third party proceedings or where there are alternative claims for the same damage and the determination of one will either render the other otiose or necessitate its determination. Conversely, claims which are "completely disparate", "completely separate and distinct" or "distinct and unrelated" are not part of the same matter.' (Citations omitted.) (Emphasis added.)
48 Their Honours held (at 586 [142]) that the fact that the creditor had been advised to issue separate proceedings did not mean that:
'the scope of the controversy is limited to the matters raised in the first proceeding. Had the Official Trustee brought a cross-claim against both the solicitors and [the barrister] immediately after [the creditor] commenced his proceeding against it and if [the creditor] had then joined the cross-respondents as respondents to his principal claim, the existence of a single controversy involving several parties would be more apparent than it may be in the present circumstances. But neither the differences in the present procedural history nor the absence of any claim by the Official Trustee against the solicitors and [the barrister] determines the question whether there is a single controversy.'
49 The flaw in the Insurers' approach to the constitutional issue is that it assumes that the boundaries of the 'justiciable controversy' in the present case are determined by the contractual relationship between KMF and the Insurers. Mr Donaldson's emphasis on the contractual relationship arising out of the Policy tends to obscure the fact that a single controversy is capable of embracing far more than a dispute between the parties to a particular contract. It is to be remembered that the word 'matter' is a term of wide connotation. As was said by Griffith CJ in South Australia v Victoria, and repeated on many occasions, the word 'is the widest term to denote controversies which might come before a Court of Justice'.