federal jurisdiction must be sought not in S. 51 but in S. 77 of the Constitution. Section 77 (so far as material) provides that "with respect to any of the matters mentioned in the last two sections the Parliament may make laws
(iii) investing any court of a State with federal jurisdiction" The " matters mentioned" in SS. 75 and 76 do not include divorce or matrimonial causes, and Pt. III of the Matrimonial Causes Act is therefore not authorized by S. 77.
The Act purports ", said his Honour, to give federal jurisdiction to the Supreme Court of this State to deal with matters which otherwise could only be dealt with in the Supreme Courts of other States. That is not giving a federal jurisdiction at all. That seems to be an attempt to invest with the jurisdiction of another State the Supreme Court of this State" His Honour did not overlook the fact that among the "matters" mentioned in S. 76 are matters
' arising under any laws made by the Parliament' But he said :-
Until the Federal Parliament has legislated with regard to divorce and matrimonial causes, as it may under S. 51, there is, it seems to me, no federal jurisdiction at all in matrimonial causes, and con- sequently there is nothing to invest this court with by way of federal jurisdiction".
We agree with his Honour that S. 51 (xxii.) alone will not support the Matrimonial Causes Act 1945, and that, unless they are author- ized by S. 77 (iii.) of the Constitution, the provisions of that Act which purport to invest the Supreme Courts of the States with federal jurisdiction in "matrimonial causes" are invalid. We are of opinion, however, that those provisions are authorized by S. 77 (iii.). They have, in our opinion, the effect of investing State courts with federal jurisdiction in 'matters arising under a law made by the Parliament" within the meaning of S. 76 (ii.).
The essence of the argument against validity is that a "matter" cannot arise under a law made by the Parliament unless there is a substantive law made by the Parliament conferring rights or imposing duties, and that it is only "with respect to " substantive rights or duties SO created by federal law that State courts can be validly invested with federal jurisdiction. This broad major premiss may probably be accepted as substantially correct. But it is necessary to remember that a substantive statutory right may, as a matter of drafting, be created by more than one method. According to accepted canons of drafting, the best method, wherever it is practicable, is to keep substantive and adjective matters distinct-to create the right as such and then to provide the remedy cf. Ilbert, Mechanics of Law Making, p. 121. But this is not invariably the simplest or easiest course to follow, and it is by no