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ARTICLE · 20 OCTOBER 2026

New CAT Certification Judgment Sets Important Markers For UK Collective Proceedings: JLP A&A Class Representative Ltd v Apple & Amazon [2026] CAT 75

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The Competition Appeal Tribunal's certification judgment in a collective action against Amazon and Apple establishes critical precedents for UK competition litigation, addressing expert independence, class representative compensation, and the viability of indirect harm claims. The ruling certifies a £289-306 million claim while rejecting a larger speculative theory, setting new standards for methodology rigor and stakeholder remuneration in collective proceedings.

United KingdomLitigation, Mediation & Arbitration

The Competition Appeal Tribunal certification judgment in JLP A&A Class Representative Ltd v Apple & Amazon [2026] CAT 75 contains a number of important points for those involved in the UK's collective actions regime and repays careful reading. 

In a re-run of the application previously brought by Christine Riefa, and now brought by Justin Le Patourel, the Tribunal has exercised its gatekeeping role robustly — certifying the claim which it found to be plausible and based on a credible methodology and data, while refusing certification of a the far bigger but more speculative one, stripping out inappropriate cost recovery, and anchoring PCR remuneration to the public-interest nature of the role.

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