On 16 June, 2021, the City Law School hosted a virtual launch of Dr Tamás Molnár’s new book The Interplay between the EU’s Return Acquis and International Law. The webinar, chaired by Dr Andrew Wolman, was organised by City’s International Law and Affairs Group (ILAG) and the Institute for the Study of European Laws (ISEL), and saw Professor Paul James Cardwell (University of Strathclyde) and Professor Elspeth Guild (Queen Mary University of London) as expert discussants. This post summarises the discussion and provides some reflections on Molnar’s book.