Marc Weller is Professor of International Law and International Constitutional Studies in the University of Cambridge. He is the Principal Investigator of the Legal Tools for Peace-Making Project, drawing on extensive experience in international high-level negotiations in Cote d’Ivoire, Egypt, Libya, the Darfur crisis, Yemen, Somalia and, most recently, Syria. Tiina Pajuste is a Lecturer in Law at Tallinn University, and former researcher on the Legal Tools for Peace-Making project. She has continued to contribute to the Legal Tools for Peace-Making project since taking up her current post. Mark Retter, Jake Rylatt and Andrea Varga are researchers working on the Legal Tools for Peace-Making project, based at the Lauterpacht Centre for International Law, University of Cambridge.