Steven Arrigg Koh is Associate Professor of Law and R. Gordon Butler Scholar in International Law at Boston University School of Law and a Junior Fellow in the Center for Cultural Sociology at Yale University. His research focuses on criminal law, constitutional law, international law, and cultural sociology.

Professor Koh’s interdisciplinary scholarship bridges theory and practice, drawing on sociological theories to deepen institutionally grounded analyses of U.S. federal and international legal systems.  His research has appeared or is forthcoming in journals such as New York University Law Review, Duke Law Journal Online, Cornell Law Review, Washington University Law Review, Boston University Law Review, Minnesota Law Review, and Fordham Law Review, and was selected for the Michigan Law School Junior Scholars Conference.  He is a contributor to Just Security and Lawfare law blogs and is a fellow at the Center for Cultural Sociology at Yale University.  He joins the Boston University School of Law faculty after serving as the Marianne D. Short and Ray Skowyra Sesquicentennial Assistant Professor of Law at Boston College Law School, where he was a winner of the Innovation in Pedagogy Award. Previously, he completed a fellowship at Columbia Law School.

His scholarship is informed by a unique combination of high-level legal practice at both US federal criminal and international criminal legal institutions. As a Trial Attorney in the Criminal Division of the US Department of Justice (DOJ) in Washington, D.C., he advised US federal and state prosecutors on international, criminal, and constitutional legal issues arising in US criminal cases with transnational dimensions. At DOJ, he also served as Counsel to the Deputy Assistant Attorney General and Counselor for International Affairs, the top international law adviser to Attorney General Loretta Lynch. During this time, Koh also taught International and Transnational Criminal Law as an Adjunct Professor of Law at Georgetown University Law Center.

Professor Koh’s international legal experience spans multiple continents, highlighted by positions in two prominent international criminal courts in The Hague, Netherlands. First, as a Visiting Professional at the International Criminal Court (ICC), he advised the Legal Adviser to the ICC Presidency on matters including the enforcement of sentence agreements with States party to the Rome Statute of the ICC. Second, as an Associate Legal Officer at the U.N. International Criminal Tribunal for the former Yugoslavia, he served in Chambers on the Prosecutor v. Radovan Karadžić trial, one of the capstone cases in the Tribunal’s history regarding charges of war crimes, genocide, and crimes against humanity. Additional international experiences include service as Visiting Scholar at Seoul National University, South Korea; study at the Cornell Summer Institute in International & Comparative Law at Université Paris I Panthéon-Sorbonne in Paris, France; representation of the Robert F. Kennedy Center of Human Rights before the OAS Inter-American Commission on Human Rights; and human rights research on a mission to Colombia co-sponsored by Senator Edward M. Kennedy. He has also been Senior Fellow and Interim-Attorney Editor at the American Society of International Law in Washington, D.C. and a law clerk for the Honorable Carolyn Dineen King of the U.S. Court of Appeals for the Fifth Circuit.

Professor Koh is currently a Ph.D. candidate in Sociology at Yale University and earned his J.D. from Cornell Law School, where he served as Senior Article Editor of the Cornell Law Review. In 2019, Cornell awarded him the Law School Alumni Exemplary Public Service Award for “commitment to the highest standards of public service.” He earned an A.B. cum laude from Harvard College and an M.Phil. in Social and Developmental Psychology from the University of Cambridge, England; he has also completed coursework in Songwriting at Berklee College of Music. He speaks conversational Spanish; has studied French, Arabic, and Korean; and is currently a member of the bar in New York, Massachusetts, and Washington, D.C.