3 Third Party Intervention

Abstract

This chapter focuses on the rights of third parties to intervene in competition proceedings in the High Court (and appellate courts) and in the Competition Appeal Tribunal (CAT). It first considers intervention by third parties in the High Court under Rule 19.2 of the Civil Procedure Rules 1998 (CPR), intervention in judicial review proceedings, and intervention in appeal proceedings. It then discusses intervention in CAT, placing emphasis on appeals and reviews (applying for permission to intervene, the time limit for making an application to intervene, the role played by intervener at the hearing). It also explains how compensation claims are made under CAT rule 16 before concluding with an analysis of intervention by competition authorities, namely the Competition and Markets Authority (CMA) and the European Union Commission.