Carlos A. Pérez Ricart is Postdoctoral Fellow in the Contemporary History and Public Policy of Mexico at the University of Oxford. He holds a PhD in Political Science and in Latin American Studies from a Comparative and Transregional Perspective at the Freie Universität Berlin and has a degree in International Relations of El Colegio de México. His PhD thesis addressed the activities of law enforcement agencies in the United States and the transnational construction of the war on drugs in Mexico between 1938 and 1978. His general research and teaching interests include the relationship between Mexico and the United States, security and organized crime, drug policies and state formation. He is currently conducting a research project which sets out to study the Mexican police and the creation of an organisation field in drug policy in Mexico during the 20th Century. His research has been published (or is forthcoming) in journals such as Foro Internacional, Global Governance, Kriminologisches Journal, Revista Colombiana de Sociología and Critical Reviews on Latin American Research. He recently coedited the book Después de Ayotzinapa: Crimen Organizado, Sociedad y Estado en México (2017, Tranvía Verlag).