Photo of Dr Thomas Horsley

Dr Thomas Horsley LL.B (Hons), LL.M, PhD (Edinburgh)

Senior Lecturer & Associate Head of Department Law


Personal Statement

Thomas joined the Law School in September 2011. He completed his PhD thesis at the University of Edinburgh (2009-2011), funded by the UK Arts & Humanities Research Council. He was appointed Senior Lecturer in 2015 and Associate Head of Department in 2019. He is also a fellow of the IIAS at the Hebrew University, Jerusalem.

His key areas of expertise include: (1) the Court of Justice of the European Union; (2) EU and UK constitutional law - including the legal implications of Brexit; (3) EU internal market law - in particular: the free movement of capital and goods; (4) Union citizenship and UK implementation of EU citizenship rights; and (5) general principles of EU law - in particular: subsidiarity and EU fundamental rights.

Thomas has published widely in leading international journals and edited collections on EU law and European integration (see here for details). His new monograph, The Court of Justice of the European Union as an Institutional Actor: Judicial Lawmaking and its Limits (preview here), appeared with Cambridge University Press in June 2018. It interrogates the function of the EU Treaty framework as a source of normative restraint on the Court of Justice and, more specifically, its interpretative choices as an institutional actor within the Union legal order.

His most recent work, and future research agenda, is focussed on analysing the impact of the UK's withdrawal from the EU on key aspects of the UK constitution and, in particular, the institutional roles of Parliament and UK courts. He has authored a book chapter and several blog posts offering an initial legal assessment of the impact of Brexit on UK courts. He is presently preparing an article on the function of parliamentary sovereignty as a principle of constitutional organisation.

Thomas engages proactively with key stakeholders. In 2017, Thomas was invited to present to members of the European Parliament's EPP Group on the challenges of Brexit for the UK constitution. He has previously given evidence to the House of Lords EU Select Committee and his research has also been cited in UK Government reports. In 2014, he was appointed UK rapporteur at the XXVI FIDE Congress hosted by the University of Copenhagen for the topic "Union Citizenship: Development, Impact and Challenges." Thomas regularly contributes expert reaction to national and international media (incl. BBC News and CTV News Canada) on major legal developments in EU law and Brexit. In addition, he has delivered public presentations on Brexit at a range of public engagement events, both individually and together with his colleagues within the EU law@Liverpool research cluster.

Thomas has supervised to completion a number of PhD projects, including on the hierarchy of norms in EU integration and the constitutional position of national parliaments in the EU legal order post-Lisbon. He welcomes enquires from prospective students with proposals within his areas of expertise.

Prizes or Honours

  • Invited to attend Judicial and Academic Visit, Court of Justice of the European Union (2017)
  • Author of the "Legal Developments" contribution for the Journal of Common Market Studies Annual Review (2014)
  • Publication on the Free Movement of Capital (OUP, 2015) cited in HM Treasury Report on EU Financial Services and Capital (2014)
  • Doctoral Award (2009-2011) (Arts and Humanities Research Council, 2009)
  • Research Preparation Master's Award (2007-2008) (Arts and Humanities Research Council, 2008)

Funded Fellowships

  • Fellow of the Institute of Advanced Studies (Hebrew University of Jerusalem, 2019)