Joe is Professor of Public Law at the University of York.

His research uses data to explore how law shapes administration and how administration shapes society. It has covered a range of sectors, including social security, immigration and asylum, social care, health administration, justice, and the application of new technologies in these sectors.

Joe directs the Administrative Fairness Lab and co-leads the Transforming Justice programme at the Institute for Fiscal Studies with Imran Rasul and Abi Adams—a research group that brings together law and economics to study justice system performance.

His research has been widely cited in major policy reviews, in both Houses of Parliament, and at all levels of the courts and tribunals. In recognition of his contributions to administrative law and socio-legal studies, he was awarded the Philip Leverhulme Prize in Law in 2023. He has held visiting positions at Yale Law School, Melbourne Law School, Osgoode Hall Law School (Toronto), and the Durham Institute of Advanced Study.

Joe currently serves as Chair of the Academic Panel of the Administrative Justice Council and is also a Trustee of the Public Law Project. His previous public service experience includes serving as an ESRC Parliamentary Academic Fellow in the House of Commons, as Research Director of the Public Law Project, and as a Trainee at the EFTA Court in President Baudenbacher’s Chambers.

Joe is also a Member of the Academic Panel at Blackstone Chambers. He has led research on numerous significant public law cases and interventions and writes extensively for practitioners and civil servants, recently co-authoring the first practitioner text on Artificial Intelligence and Public Law with Brendan McGurk KC.