Richard J. Aldrich is Professor of International Security at the University of Warwick and Director of the Institute of the Advanced Study. His books include GCHQ: the Uncensored Story of Britain's Most Secret Intelligence Agency (Harper Collins, 2010).

Rory Cormac is a lecturer in international relations at the University of Nottingham. He is the author of Confronting the Colonies: British Intelligence and Counterinsurgency (Hurst, 2013).

Michael S. Goodman is Professor of Intelligence and International Affairs in the Department of War Studies, King's College London and Visiting Professor at the Norwegian Defence Intelligence School. He has published widely in the field of intelligence history, including most recently The Official History of the Joint Intelligence Committee, Volume I: From the Approach of the Second World War to the Suez Crisis (Routledge, 2015), which was chosen as one of The Spectator's books of the year. He is series editor for Intelligence and Security for Hurst/Columbia University Press; and for Intelligence, Surveillance and Secret Warfare for Edinburgh University Press; and is a member of the editorial boards for five journals. He is currently on secondment to the Cabinet Office where he is the Official Historian of the Joint Intelligence Committee.