A. above-mentioned Act. 4. The defendant, the Commissioner for
Main Roads, is a body corporate, and, with the defendants the Commissioner for Motor Transport and John William Goodsell, is a member of the Advisory Committee constituted by S. 18 (5c) of the said Act. 5. The first-named plaintiff carries on business as a carrier of goods by road, and operates the public motor vehicles of which it is the owner on journeys from Sydney, in the State of New South Wales, to Brisbane, Melbourne, and Adelaide in the States [No. 2].
of Queensland, Victoria, and South Australia, respectively, and from each of the said cities to any one or more of the others. The said plaintiff does not operate its said vehicles for the carriage of goods on intra-State journeys in any of the said States. 6. The second-named plaintiff carries on business as a carrier of goods by road and operates the public motor vehicle of which he is the owner on journeys from Sydney, in the State of New South Wales, to Brisbane, Melbourne, and Adelaide in the States of Queensland, Victoria, and South Australia, respectively, and from each of the said cities to any one or more of the others. The said plaintiff does not operate his said vehicle for the carriage of goods on intra-State journeys in any of the said States. 7. This cause is one within the original jurisdiction of this Honourable Court, in that it involves the interpretation of the Constitution of the Commonwealth of Australia.
The plaintiffs' claim :-1. A declaration that the State Transport (Co-ordination) Act 1931-1954 is beyond the powers of the Parliament of New South Wales and is invalid. 2. A declaration that S. 3 (3) and the Third Schedule of the State Transport (Co-ordination) Act 1931-1954 is beyond the powers of the Parliament of New South Wales and is invalid. 3. A declaration that SS. 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 28, 37, and 38A, are beyond the powers of the Parliament of New South Wales and are invalid. 4. A declaration that the following sections as deemed to be amended by S. 3 (3) and the Third Schedule of the said Act, viz. 12, 16, 17, 18, 22, 28, 37, 38A and the following sections of the said Act, viz. SS. 13, 14, 15, and 21 are beyond the powers of the Parliament of New South Wales and are invalid. 5. A declaration that the Motor Vehicles (Taxation) Act 1951 is beyond the powers of the Parliament of New South Wales and is invalid. 6. A declaration that the Motor Vehicles Taxation Management Act 1949-1951 is beyond the powers of the Parliament of New South Wales and is invalid.
By their defence delivered on 18th January 1955 the defendants pleaded as follows :-
The defendants in answer to the whole of the statement of claim say as follows :-(a) That the roads and streets within the State of