Prior to participating in the founding of MKK in 1971, Dr. Mochtar served first as Dean of the Faculty of Law and then as Rector of Padjadjaran University, one of Indonesia's leading institutions of higher learning. As a scholar and academician, Dr. Mochtar was one of the early conceptualizers and proponents of the archipelagic theory of territorial seas. For years he led Indonesia's ultimately successful efforts to have the archipelagic theory accepted into the generally recognized public international law of the sea.
On leave from active practice with the firm, Dr. Mochtar served as Minister of Justice of the Republic of Indonesia from 1974-1978 and then as Minister of Foreign Affairs from 1978 to 1988. Upon return to private practice with the firm in 1989, Dr. Mochtar continued his distinguished career of national and international public service. Among the many important national and international appointments he has held are:
- Member of the nation's Supreme Advisory Council from 1988 to 1998;
- Member of the Panel of Conciliators and Arbitrators, Center for the Settlement of International Disputes, Washington DC (retired 1979, reappointed 1990);
- Chairman of the Iraq-Kuwait Boundary Demarcation Commission (1991);
- Member of the International Law Commission for two consecutive periods (1992-2002);
- Member of the Editorial Board of the Ocean Development and International Law Journal, Washington DC.
Dr. Mochtar received his Master of Laws degree from the University of Indonesia in 1955 and obtained the LL.M degree from Yale University School of Law in 1955. He obtained the degree of Doctor of Laws from Padjadjaran University in 1962. Upon special invitation he attended Harvard Law School 1964-1965 and then the University of Chicago School of Law, 1965-1966.