Christina Boswell is Professor of Politics at the University of Edinburgh and Fellow of the British Academy. Her previous books include Manufacturing Political Trust: Targets and Performance Measurement in Public Policy (Cambridge, 2018) which won the Political Studies Association prize for best book in political science and The Political Uses of Expert Knowledge: Immigration Policy and Social Research (Cambridge, 2009) which won the American Political Science Association prize for best book on ideas, knowledge and policy. Emile Chabal is a Reader in History at the University of Edinburgh. His Ph.D. won the Cambridge History Faculty's Prince Consort and Thirlwall Prize and the Seeley Medal. His publications include A Divided Republic: Nation, State and Citizenship in Contemporary France (Cambridge University Press, 2015) and France (2020).