I will venture to state some propositions which seem to me elementary, premising that the Australian Constitution, like other great instruments of government, deals with substantive rights and not with technicalities of procedure. For instance, it speaks of "proposed laws," not of " bills," and says nothing about first, second, and third readings.
The propositions are these :-In sec. 75 (1) The term "matter" includes any case whatever in which the exercise of the judicial power of the Commonwealth is invoked
(2) A proceeding in which the exercise of that power is invoked to restrain usurpation or excess of jurisdiction by an inferior Court is therefore a "matter"
(3) The person by whom or against whom that exercise is invoked is a party in the "matter":
(4) If the Commonwealth is aggrieved by such an usurpation or excess by an inferior Court, it may as a party invoke the exercise of the judicial power to restrain it
(5) The name in which a sovereign State may invoke the exercise of judicial power in any Court, or under which that exercise may be invoked against it, is a matter of procedure, largely, though not altogether, governed by positive law. In the United Kingdom, for instance, the King invokes the exercise in the name of his Attorney- General. The exercise is invoked against him (in permitted cases) in his own name. In the United States of America the designation "United States " is used in both cases. In the Australian States the practice is various. The right of the Commonwealth to invoke the judicial power in its own name is expressly recognized by the provision in debate.
The question, then, is whether the present case is such a "matter." The question appears to answer itself.
There are few things more embarrassing than to be called upon to prove the truth of an elementary proposition or the meaning of a word in common use. But I suppose it is accurate to say that when a word has always been used in a particular context to designate a particular concept, then when used in that context it means that concept. This is a mere truism.
Ever since the time of Edward I. the word "prohibition" has