In his great blueprint, “An International Bill of the Rights of Man,” written in 1943, i.e. before the Dumbarton Oaks Conversations of 1944 and the San Francisco Conference of 1945, Professor Hersch Lauterpaeht (as he then was) suggested that the international machinery for securing the observance of the “International Bill of the Rights of Man,” which he then proposed, must be of two kinds—of supervision in its widest sense, and of enforcement. By “supervision in its widest sense” he meant “all activity calculated to ensure the observance of the Bill of Rights short of actual enforcement by political or physical means of compulsion.” He went on to say that this included

The United Nations Sub-Commission on the Prevention of Discrimination and the Protection of Minorities has an interest which is belied by its subordinate position in the international hierarchy. Apart from the intrinsic interest of the work in which it is engaged—work at the very heart of some of the most hotly debated issues in the United Nations—the Sub-Commission, because of the manner of its composition, possesses certain characteristics which differentiate it significantly from most other United Nations organs. Like the now defunct Sub-Commission on Freedom of Information and of the Press which was created at the same time, it consists, in theory, at least, of experts acting in their individual capacity, an arrangement which—because it gave its members a degree of independence not possessed by representatives of governments—would, it was hoped, permit them to contribute to the solution of certain problems in ways not possible to the latter. How has this arrangement worked in practice, if at all? Does the Sub-Commission really act as a body of independent experts, or are its decisions motivated by the same kind of political considerations which motivate its superior bodies? Why has it so singularly failed to make any contribution towards the protection of minorities? “What have been its successes and what is its future?

On December 16, 1966, the General Assembly approved three agreements designed to establish a global system of enforceable treaty obligations with respect to fundamental human rights. These agreements are the second part of the “international bill of rights” proposed at the San Francisco Conference. Eighteen years separated the adoption of these agreements—the International Covenant on Economic, Social and Cultural Rights, the International Covenant on Civil and Political Rights, and the Optional Protocol to the International Covenant on Civil and Political Rights—and the approval in 1948 of the first part of the projected United Nations program for the protection of human rights, the non-binding Universal declaration of Human Rights.