Gastón Chillier is the director the International Area at the Centro de Estudios Legales y Sociales in Buenos Aires, Argentina. Before, he served as executive director of CELS, and has been co-chair of the International Network of Civil Liberties Organizations since 2011. He previously worked as senior human rights and security associate at the Washington Office on Latin America. Prior to that, he was director of Global Rights’ Latin America program. Gastón Chillier earned a law degree at the Universidad de Buenos Aires and obtained an LL.M. in international law and human rights at Notre Dame Law School in Indiana, US.