Steven R. Ratner is the Bruno Simma Collegiate Professor of Law at the University of Michigan Law School. His teaching and research focus on public international law, including IHL, counter-terrorism strategies, accountability for human rights violations, and corporate and state duties regarding foreign investment. He served as a member of both the Secretary-General's Group of Experts for Cambodia and the Secretary-General's Panel of Experts on Accountability in Sri Lanka, which addressed post-conflict accountability options. In 2008-2009, he served in the legal division of the ICRC in Geneva. Since 2009, he has served on the State Department's Advisory Committee on International Law. Among his publications are Accountability for Human Rights Atrocities in International Law: Beyond the Nuremberg Legacy (Oxford University Press), now in its third edition.