GB | Incident Report
Professional Malpractice
2025-12-04
UK High Court Reprimands Counsel for Fictitious AI Citations
AI Model: Unspecified generative AI tool HallucinationUK CourtsLegal Tech
I. Executive Summary
A barrister in a high-stakes commercial hearing was found to have included passages from non-existent cases generated by AI.
II. Key Facts
- 18 of 45 citations were discovered to be fictitious. • Counsel admitted to using public AI tools for research. • Court initiated a "wasted costs" order against the firm.
III. Regulatory & Ethical Implications
Signals that the UK judiciary will use cost sanctions to deter unverified AI research.