UKJT Legal Statement: Lawyers Can Be Negligent for Failing to Use AI — And for Using It Badly

The UK Jurisdiction Taskforce published its Legal Statement on Liability for AI Harms under English Private Law on July 7, 2026 — an authoritative (non-binding) analysis that courts and arbitrators are expected to apply in AI liability disputes. The statement's most consequential finding for law firm AI governance is its professional negligence conclusion: lawyers can face professional negligence claims for "negligent use of AI" and for "failing to use AI where a competent member of their profession would have done so." A second critical finding for firms deploying AI in client-facing contexts: organizations that present an AI chatbot as communicating on their behalf, or adopt AI-generated statements as their own, bear liability under agency and misrepresentation principles for those outputs — regardless of whether the generating model is a third-party product. Foundation model developers are, in most circumstances, not liable for harm caused by unforeseeable uses of their general-purpose models. The practical KM implication is significant: every AI output that passes through a knowledge management or workflow system and is presented to a client without adequate attorney review and annotation is a potential professional liability event — not the model vendor's problem but the firm's. For KM directors, the statement is the strongest English law argument yet for building review checkpoints, output validation, and human-in-the-loop gates into every AI-assisted workflow.