Hans Corell served as Under-Secretary-General for Legal Affairs and Legal Counsel of the United Nations from March 1994 to March 2004. He was the Secretary-General´s representative at the Rome Conference on the Establishment of an International Criminal Court.
From 1962 to 1972, Corell served in the Swedish judiciary. In 1972, he joined the Ministry of Justice where he became Director of the Division for Administrative and Constitutional Law in 1979. In 1981, he was appointed Chief Legal Officer of the Ministry. He was Ambassador and Under-Secretary for Legal and Consular Affairs in the Foreign Ministry from 1984 to 1994.
In 2004 Corell retired from public service and is now engaged inter alia as legal adviser, lecturer, and member of different boards and committees, including in the International Bar Association. He is Chairman of the Board of Trustees of the Raoul Wallenberg Institute of Human Rights and Humanitarian Law at Lund University, Sweden.