For more than a decade he has taught courses related to the ATS at Georgetown, and he is a frequent author, lecturer, and media commentator on issues related to the ATS, war crimes, and corporate human rights compliance programs. He also frequently advises and represents companies, governments, and individuals on matters related to the ATS, human rights norms, and other similar issues. He is a former deputy director in the Justice Department's Office of Special Investigations, where he led investigations and prosecutions of suspected war criminals. He is a former Bristow Fellow in the Office of the U.S. Solicitor General, and a judicial clerk on the U.S Court of Appeals for the Ninth Circuit. He graduated from Stanford University with highest University Honors,and UCLA Law School Order of the Coif.