In 1982–83 he served as a member of the Kahan Commission, a state investigation committee formed to investigate the circumstances surrounding the Sabra and Shatila massacre. As part of the committee's conclusions, then Minister of Defense Ariel Sharon was removed from his position. The committee further recommended that he never be appointed to that position again in the future. In 1993, with the retirement of the Deputy President of the Supreme Court Menachem Elon, Barak was appointed the Deputy President. Subsequently, with the retirement of the President Meir Shamgar on 13 August 1995, Barak was appointed the President of the Supreme Court.