In this ongoing series of short videos, academics from the University of Cambridge and beyond shed light on the key issues to be considered in the run up to the upcoming referendum on the UK's membership of the European Union. This video features Professor Catherine Barnard, Professor of European Union Law, who examines the vexed issue of the deportation of EU nationals who are either known criminals, or who commit crimes while in the UK. This series of videos has been created by the Centre for European Legal Studies (CELS). For more information visit http://www.cels.law.cam.ac.uk/