United Kingdom · Legal Practice

UK AI False Citation Review

Under the Hamid jurisdiction, the court jointly examined fabricated authorities and verification duties in two proceedings, without merging their underlying merits. Al-Haroun admitted using AI tools and other sources; the Ayinde lawyer denied generative AI use, and the court expressed serious doubts without establishing a unique cause.

Court or tribunal
High Court of England and Wales, King’s Bench Divisional Court
Representative decision date
6 June 2025
Procedural status
High Court judgment reviewing lawyers’ professional responsibility
Case number
AC-2024-LON-003062;CL-2024-000435;[2025] EWHC 1383 (Admin)

01

Factual background & dispute

  • Two unrelated proceedings contained legal citations that could not be verified or accurately supported.
  • Al-Haroun admitted using AI tools and other sources to generate citations. The Ayinde lawyer denied generative AI use; the court seriously questioned the explanation but did not establish a sole cause.
  • The separate proceedings were jointly listed under the inherent Hamid jurisdiction for professional-responsibility review, not a merged merits adjudication.

02

Core issues & judicial focus

  1. The verification standard for legal professionals using generative AI
  2. Supervisory responsibility of team leaders, signing lawyers and advocates
  3. Disclosure and correction duties after fabricated citations are discovered

03

Judicial finding & holding

  • Lawyers must independently verify authorities and materials submitted to the court, including citations supplied by AI or a client.
  • The court referred the relevant professional issues to regulatory bodies in light of each proceeding.
  • The judgment did not impose final disciplinary sanctions or initiate contempt proceedings against the relevant lawyers; subsequent regulatory outcomes were not reviewed.

04

Practical risk implications

01Implement citation-by-citation verification, second-person review and final approval records for court filings.

02Allocate responsibility for AI-assisted research, drafting, review and advocacy across the matter team.

03Once an error is found, stop relying on the affected material, conduct a complete review and provide the court with an accurate account.

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