“legal professionals bear ultimate responsibility for their work and cannot outsource the process of legal research or of legal reasoning to an AI.”
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- Cork & Anor v Smith [2026] EWHC 1199 (Ch) involved law firm Pinsent Masons.
- The firm cited a non-existent Insolvency Rule and used AI to draft an explanatory letter repeating the error.
- The judge ordered a copy of the judgment sent to the SRA despite the firm's self-referral.
- The ruling was delivered by ICC Judge Mullen in the High Court of Justice (Chancery Division).
- On May 22, 2026, the court found the firm misled the court twice on a block transfer application.