Following on from earlier consideration of this issue by the same authors in the 1980s, this article examines the principles governing the negligence liability of public authorities as articulated in recent cases, and in particular the decisions of the House of Lords in X v. Bedfordshire, Stovin v. Wise and Barrett v. Enfield London Borough Council. It concludes that the various attempts to establish special principles to govern such liability have been misguided, and that the courts have proved too willing to reject claims on the basis of questionable policy considerations, to the extent that a blanket immunity might appear to have been established in some contexts. Ultimately, this approach has brought the United Kingdom into conflict with its obligations under the European Convention on Human Rights. It is argued that ordinary private law principles provide a wholly appropriate basis for reconciling the legitimate interests of public authorities with the need to accord justice to individual litigants.