News
Group Actions 13th Jul 2026
Pan-NOx Litigation: PDD Trial Judgment Handed Down
The English High Court has handed down judgment in the Pan-NOx litigation following the PDD trial. The judgment can be found here.
The Pan-NOx litigation is a group action involving claims brought by around 1.6 million Claimants against a variety of diesel motor vehicle manufacturers. It is unprecedented in its size and scale, and this judgment from Cockerill LJ marks an important milestone in the progress of the litigation.
23 members of Henderson Chambers have been involved in this stage of the Pan-NOx litigation, acting for Claimants and different Defendant manufacturers.
- For the Claimants: Oliver Campbell KC, Rachel Tandy, Beatrice Graham, Freya Foster, Weishi Yang, Isha Shakir & Kate Gardiner – instructed by the Claimant Steering Committee
- For Mercedes: Malcolm Sheehan KC, James Purnell KC, Lia Moses, Jack Castle & William Moody – instructed by Herbert Smith Freehills Kramer
- For VW: Prashant Popat KC, Kathleen Donnelly KC, Thomas Evans, Lucy McCormick, Celia Oldham & Ben Norton – instructed by Freshfields
- For Porsche: Geraint Webb K.C. & Douglas Maxwell – instructed by Hogan Lovells Cadwalader
- For JLR: Andrew Kinnier KC & James White – instructed by CMS Cameron McKenna Nabarro Olswang
- For Mazda: Noel Dilworth – instructed by Hogan Lovells Cadwalader

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