Mr. Motoo Noguchi is international judge of the Supreme Court Chamber at the Extraordinary Chambers in the Courts of Cambodia (ECCC) as well as a member of the tribunal's Judicial Administration Committee and Rules and Procedure Committee. In his home country, Japan, he is professor at UNAFEI (United Nations Asia and Far East Institute for the Prevention of Crime and the Treatment of Offenders), serving concurrently as senior attorney at the Ministry of Foreign Affairs, International Legal Affairs Bureau. He started his career as public prosecutor at the Ministry of Justice in 1985 and has accumulated considerable experiences in criminal investigations and trials. He has also been engaged in the provision of legal technical assistance and capacity building for developing countries since 1996. From 2000-04, he was seconded to Asian Development Bank (ADB) in Manila as counsel at Office of the General Counsel. Since 2004, he has been acting as a legal advisor to the Ministry of Foreign Affairs concerning the International Criminal Court (ICC) and international criminal justice. He has written and spoken extensively on relevant subjects both in Japan and abroad.

Mr. Noguchi graduated from the University of Tokyo, faculty of law (1983) and the Legal Research and Training Institute of the Supreme Court of Japan (1985). He was visiting scholar at University of Washington, School of Law (1992-93), visiting professional at the ICC (2005), and visiting fellow at Yale Law School, Schell Center for International Human Rights and MacMillan Center for International and Area Studies at Yale, Genocide Studies Program (2006-07).

Mr. Noguchi's recent teaching activities include faculty member of 6th Specialization Course in International Criminal Law held by International Institute of Higher Studies in Criminal Sciences (2007), faculty member of Summer Institute on International Humanitarian Law and Human Rights organized by Asian International Justice Initiative (2008-09), and visiting lecturer/professor at the University of Tokyo, graduate studies programs (2009).