Gabrielle Marceau is a former Senior Counsellor in the Research Division of the WTO Secretariat and Associate Professor at the Law Faculty of the University of Geneva. In September 1994, Dr Marceau joined the GATT Secretariat and for several years her main function was to advise panellists in WTO disputes, the Director-General's Office, the Secretariat, and WTO members on WTO-related matters. From September 2005 to January 2010, Dr Marceau was Legal Advisor in the Cabinet of former WTO Director-General Pascal Lamy and from September 2016 to January 2017, she was acting Director, Officer in Charge for the Legal Affairs Division.