A letter of 1st July 1973, under cover of which the Discussion Paper was presented to the Minister, refers to "the development of a new project to assist the planning and provision of welfare services in Australia". On behalf of the Commonwealth, it was submitted that the aim of the Plan was to obtain information to enable the Government to consider what legislation it might introduce to provide the welfare services most beneficial to the community. It was said that the Parliament might itself legislate to provide welfare services under pars (vi.), (xxi.), (xxii.), (xxiii.), (xxiiiA.), (xxvi.), (xxvii.), and (xxxix.) of s. 51 and under s. 122 and also under the power which arises from its position as a national Parliament, and that it might provide grants to the States for welfare services under s. 96, and that the purpose of the Plan was to inform the Executive as to which of these powers should be exercised, in an endeavour to ensure that the welfare services provided by the Government of the Commonwealth combine harmoniously with those provided by others, and that the States should be encouraged by means of grants to provide necessary services that the Commonwealth cannot provide. It is true that the Plan is of a flexible, experimental and evolutionary kind, and that it is apparently intended that it should be modified whenever experience shows that to be desirable. However, with all respect to the learned Solicitor-General for the Commonwealth, it is quite unreal to suggest that the Plan has no wider purpose than to obtain information for the purpose of enabling the Parliament to legislate on matters within its powers. The framers of the Plan obviously intended that the Regional Councils should provide the public with a wide variety of welfare services on quite a large scale. It is clear from repeated references in the documents that it was intended that the Councils should decide what projects for social welfare should be put into effect and should in fact give effect to them. In other words, it was intended that the Councils should provide social welfare services as well as plan for them. Some indication of the scale of the services to be provided is given by the amount appropriated for the purposes of the Plan for one year. Moreover, it is quite apparent that under the Plan, the Councils may use their moneys in providing services although the Parliament would have no power to legislate for the provision of such services. Some of the paragraphs of s. 51, to which reference has been made, would appear to have little or no relevance to the present question, but under other paragraphs it is possible that the Parliament might legislate to provide some of the services mentioned, at least for particular classes of persons. No doubt under s. 122 the Parliament could legislate to provide social welfare services for the inhabitants of the Territories, but the Plan is not limited to or primarily concerned with the Territories. The legislative power that is said to be incidental to the exercise by the Commonwealth of the functions of a national government does not enable the Parliament to legislate with respect to anything that it regards as of national interest and concern; the growth of the Commonwealth to nationhood did not have the effect of destroying the distribution of powers carefully effected by the Constitution. Indeed, the Pharmaceutical Benefits Case [39] decided that the existence of the Commonwealth and its status as a national government did not provide the Parliament with power to enact the social welfare legislation which was challenged in that case. However widely the powers of the Commonwealth to legislate with regard to social welfare may be thought to extend, this Plan goes far beyond them - indeed, under the Plan, the Councils would be free to devote the whole of the funds available in providing services which could not possibly be the subject of valid Commonwealth legislation. The Plan cannot be justified as an inquiry for the purpose of determining what grants should be made to the States; it is not limited to a mere inquiry, and in any case under the Plan the moneys are not paid to the States but to the Regional Councils set up by the Plan itself.