John has been resident in Brussels since 1996.

He has regularly been involved in the notification of deals to the European Commission, since the adoption of the EU Merger Regulation in 1989. His practice also involves cartel investigations by the Commission and national competition authorities (including immunity and leniency applications).

His contentious work includes proceedings before the General Court and Court of Justice in Luxembourg (including successful appeals in cartel, merger, State aid and parallel trade matters), as well as the Competition Appeal Tribunal and Court of Appeal in London.

John is ranked as a leading individual (Band 1) in the Competition/European Law sections of Chambers Europe and Chambers Global and in the EU Competition section of IFLR 1000. He is a contributing author to Bellamy & Child (EU Law of Competition, 7th edition, Spring 2013), Chapter on Merger Control. He is fluent in French.