Clive Walker is Professor Emeritus of Criminal Justice Studies at the School of Law, University of Leeds. He has written extensively on criminal justice and human rights issues with a focus on terrorism, emergencies, and the law. His outputs include many books such as Terrorism and the Law (Oxford University Press, 2011) and The Anti-Terrorism Legislation (Oxford University Press, 2014). He has also been appointed by the Home Office as Senior Special Adviser to the Independent Reviewer of Terrorism Legislation. In 2003, he was drafted as a special adviser to the UK Parliamentary select committee considering the draft proposals which emerged as the Civil Contingencies Act 2004. Arising from that exercise, he has published two books: The Civil Contingencies Act 2004: Risk, Resilience and the Law in the United Kingdom (Oxford University Press, 2006) and Walker, C.P. (ed.), Contingencies, Resilience and Legal Constitutionalism (Routledge, 2015).