Professor Steinhardt specialises in International Law, Human Rights Law, conflicts of laws, international civil litigation, and international business transactions. He is co-director of the Oxford-GW Program in International Human Rights Law at New College, Oxford. His current research concerns the human rights obligations of multi-national corporations. Professor Steinhardt also serves on the Board of Editors of the Oxford University press project on international law in domestic courts.
Professor Steinhardt has served as legal counsel to several foreign governments, as well as counsel to the U.N. High Commissioner for Refugees, Amnesty International, Human Rights Watch, and the International Human Rights Law Group. He pioneered the application of International Human Rights Law in U.S. courts. He has written books and articles on the application of international law in U.S. courts, statutory construction, international trade law, jurisprudence, and human rights. He has served on the Harvard International Law Journal and practiced law for five years in Washington, D.C., specialising in federal litigation, administrative law, and trade.