Mary Bosworth is a Professor of Criminology at the University of Oxford, where she is a Fellow at St Cross College. Alongside this, she is a Professor of Criminology at Monash University, Australia. Mary is also Founder and Director of the research network and website, Border Criminologies. Her work examines the interconnections between border control and criminal justice, with a particular focus on immigration detention and deportation.Lucia Zedner is a Senior Research Fellow in Law at All Souls College and Professor of Criminal Justice in the Faculty of Law at the University of Oxford. She is also a Fellow of The British Academy, a Conjoint Professor at the University of New South Wales, and an Overseas Fellow of the Australian Academy of Law. Her research interests include criminal justice, security, counterterrorism, migration control, and larger questions about relations between the state, citizens, and social order.

This slim edited collection raises important questions that will appeal to readers from across disciplines.

• Lucia Zedner and Mary Bosworth: Introduction PART 1: THE LIMITS OF STATE SOVEREIGNTY 1: Jennifer Chacón: Same as It Ever Was? Race, Capital, and Privatized Immigration Enforcement 2: Valsamis Mitsilegas: Contested Sovereignty in Preventive Border Control: Civil Society, the 'Hostile Environment' and the Rule of Law 3: Peter Ramsay: The Borders of Sovereignty PART 2: LEGITIMACY AND THE RULE OF THE LAW AT THE BORDER 4: Malcolm Thorburn: Roles and Offices at the Border: Is Privatizing Border Control Intrinsically Illegitimate? 5: Ashwini Vasanthakumar: Towards Legitimacy at the Border 6: Emily Ryo and Ian Peacock: Privatized Immigration Detention: Morality, Economics and Transparency PART 3: OUTSOURCING OR UNDERMINING STATE AUTHORITY 7: Hallam Tuck: "Because We Are Deportable People": Privatization, Citizenship, and Race in US All-Foreign Prisons 8: Federica Infantino: The Marketization of 'Legitimate' Violence: Inducing Deportation through Public-Private Cooperation 9: Mary Bosworth and Samuel Singler: A Mundane Spectacle? (In)visibility, Normalisation and State Power in the UK's Migrant Escorting Contract PART 4: PRACTICES OF PRIVATISATION AT THE BORDER 10: Anthea Vogl: Outsourcing Deterrence: The Humanitarian Border, Asylum Seekers and Non-Government Organizations in Australia 11: Lucia Zedner: Outsourcing the Border Within: Private Citizens as Border Guards, State Sovereignty and Civil Peace 12: Didier Bigo: The Digitalisation of Border Controls and Their Corporate Actors Ana Aliverti: Afterword

Mary Bosworth is a Professor of Criminology at the University of Oxford, where she is a Fellow at St Cross College. Alongside this, she is a Professor of Criminology at Monash University, Australia. Mary is also Founder and Director of the research network and website, Border Criminologies. Her work examines the interconnections between border control and criminal justice, with a particular focus on immigration detention and deportation.Lucia Zedner is a Senior Research Fellow in Law at All Souls College and Professor of Criminal Justice in the Faculty of Law at the University of Oxford. She is also a Fellow of The British Academy, a Conjoint Professor at the University of New South Wales, and an Overseas Fellow of the Australian Academy of Law. Her research interests include criminal justice, security, counterterrorism, migration control, and larger questions about relations between the state, citizens, and social order.

This slim edited collection raises important questions that will appeal to readers from across disciplines.

• Lucia Zedner and Mary Bosworth: Introduction PART 1: THE LIMITS OF STATE SOVEREIGNTY 1: Jennifer Chacón: Same as It Ever Was? Race, Capital, and Privatized Immigration Enforcement 2: Valsamis Mitsilegas: Contested Sovereignty in Preventive Border Control: Civil Society, the 'Hostile Environment' and the Rule of Law 3: Peter Ramsay: The Borders of Sovereignty PART 2: LEGITIMACY AND THE RULE OF THE LAW AT THE BORDER 4: Malcolm Thorburn: Roles and Offices at the Border: Is Privatizing Border Control Intrinsically Illegitimate? 5: Ashwini Vasanthakumar: Towards Legitimacy at the Border 6: Emily Ryo and Ian Peacock: Privatized Immigration Detention: Morality, Economics and Transparency PART 3: OUTSOURCING OR UNDERMINING STATE AUTHORITY 7: Hallam Tuck: "Because We Are Deportable People": Privatization, Citizenship, and Race in US All-Foreign Prisons 8: Federica Infantino: The Marketization of 'Legitimate' Violence: Inducing Deportation through Public-Private Cooperation 9: Mary Bosworth and Samuel Singler: A Mundane Spectacle? (In)visibility, Normalisation and State Power in the UK's Migrant Escorting Contract PART 4: PRACTICES OF PRIVATISATION AT THE BORDER 10: Anthea Vogl: Outsourcing Deterrence: The Humanitarian Border, Asylum Seekers and Non-Government Organizations in Australia 11: Lucia Zedner: Outsourcing the Border Within: Private Citizens as Border Guards, State Sovereignty and Civil Peace 12: Didier Bigo: The Digitalisation of Border Controls and Their Corporate Actors Ana Aliverti: Afterword