James Groves | Fieldfisher
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Professional background

Professional background

I have experience in acting for clients on a range of competition law matters, including CMA and Ofcom investigations, anti-trust compliance, vertical agreements, merger control and subsidy control. On contentious competition and regulatory matters I have represented clients in litigation before the CAT, High Court, Court of Appeal and Supreme Court.

Prior to a career in law, I spent six years working in public sector consulting and public policy.

Authored pieces

All Resources
Consumer Enforcement
Insight

Emma Sleep ruling challenges CMA reference pricing approach

24.08.2026
The High Court's decision in the Emma Sleep case limits the CMA's ability to impose fixed volume ratios on reference pricing, but businesses must still ensure their "Was/Now" claims are realistic and not misleading.
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Public and Regulatory
Insight

Selective distribution, RPM, online sales bans – latest court guidance

21.07.2026
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Public and Regulatory
Insight

First financial penalties under new consumer enforcement regime: from guidance to enforcement

17.07.2026
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Consumer Enforcement
Insight

Consumer class actions in England and Wales: the Law Commission’s consultation explained

18.05.2026
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Consumer Enforcement
Insight

Power Cables - London Array 'Short Circuits' Spottiswoode

03.12.2025
On 30 October 2025, the Competition Appeal Tribunal (CAT ) handed down its judgment following a joint hearing in Clare Mary Joan Spottiswoode CBE v Nexans France S.A.S. & Others and London Array Ltd & Others v Nexans France S.A.S. & Others (respectively, “Spottiswoode ” and “London Array ”).
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