Catherine Barnard, FBA, FLSW, FRSA is Professor of EU law and Employment Law and senior tutor and fellow of Trinity College, Cambridge. She is the author of EU Employment Law (Oxford, OUP, 2012, 5th ed.), The Substantive Law of the EU: The Four Freedoms, (Oxford, OUP, 2019, 6th ed), and (with Peers ed), European Union Law (Oxford, OUP, 2020, 3rd ed). She is a member of the European Commission funded European Labour Law Network (ELLN). She is also a Senior Fellow and deputy director of the UK in a Changing Europe project (UKCE). This is an authoritative, non-partisan think-tank which does research and provides information about all aspects of Brexit. Part of its remit is to make that information accessible to the general public. So UKCE does a lot of public engagement, especially with the media, civil servants, politicians and the public. She has appeared on the main media channels – BBC, ITV and Sky – as well as some of the more specialist programmes such as Law in Action, Woman’s Hour, Question Time, Any Questions and the Briefing Room. She has also written for the Guardian and the Telegraph. She has given evidence to numerous select committees on the legal issues connected with Brexit, immigration and the European Union (Withdrawal) Act. She has her own podcast, 2903cb, and she blogs on Brexit, mainly for the UK in a Changing Europe project.