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Generative AI misuse in litigation: EWHC clarifies duties, sanctions and leadership obligations in Ayinde v Haringey and Al‑Haroun v Qatar National Bank (England and Wales)

Published on: 19 June 2025

Published by a LexisNexis Dispute Resolution expert
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Misuse of AI in court and the consequences (Ayinde v Haringey & Al-Haroun v Qatar National Bank) R (on the application of Frederick Ayinde) v Haringey London Borough Council; Al-Haroun v Qatar National Bank QPSC and another company [2025] EWHC 1383 (Admin) What are the practical implications of this case?

This ruling sets out explicit directions for lawyers who deploy AI, so that they remain within their professional obligations. The court also outlined what must happen when practitioners discover that they, their wider team, or their client has misused AI.

  • Generative AI systems, including ChatGPT, are not a dependable source of legal research. They can offer convincing but inaccurate claims, refer to authorities that do not exist and attribute quotations to genuine materials that are not present in those texts. Both the Solicitors Regulation Authority and the Bar Standards Board have cautioned against such ‘hallucinations’. Where lawyers nevertheless use generative AI, they owe a professional duty to verify the correctness of any research. That duty equally applies to checking the work of others on whom they rely
  • The misuse of AI carries serious...

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