Dr. Leonardo Castilho is a Human Rights Officer with the United Nations Office of the High Commissioner for Human Rights (OHCHR) in New York. After working for NGOs in his hometown of Rio de Janeiro, Leonardo joined the UN in 2005 and has since worked for OHCHR and UNFPA in various positions in New York, Geneva, and in different countries in Latin America. He began his university studies on Law and International Relations at PUC-Rio, obtained master’s degrees from Sciences-Po Paris and Oxford University, and later obtained a PhD degree on International Relations / Political Science from the Graduate Institute for International and Development Studies. Leonardo was recently a Fellow of the Berlin/Potsdam KFG Research Group International Rule of Law: Rise or Decline?