After graduating, I spent six years in the US Navy JAG Corps, stationed in Philadelphia and London. I served in a number of billets, including Trial Counsel (prosecutor), Defense Counsel, Legal Adviser and Command Judge Advocate.
In 1998, after receiving my LLM in public international law from the London School of Economics, I joined the International Criminal Tribunal for the former Yugoslavia in The Hague, The Netherlands. I spent 11 years there working initially for the President of the Tribunal as her legal adviser and then as a prosecutor. I handled a variety of cases, including the Siege of Sarajevo, the Mujahedeen cases and the Bosnian Croat leadership case from Herzegovina.
In 2009, I joined the Special Tribunal for Lebanon as the Chief of Prosecutions. This court dealt with political terrorism in Lebanon and the assassination of former Prime Minister Rafik Hariri. In 2013, I was appointed by the UN Secretary-General as the Registrar of the Tribunal. In this role, I was the senior administrator of the court, responsible for all non-judicial and non-prosecutorial decision-making, responsible for overseeing an institution with a $75 million annual budget and more than 400 staff members. I retired from the UN at the Assistant Secretary-General level in February 2021.