Essential Cases: Public Law provides a bridge between course textbooks and key case judgments. This case document summarizes the facts and decision in R v Panel on Take-overs and Mergers, ex parte Datafin plc [1987] QB 815, Court of Appeal (Civil Division). This case examines the characteristics of bodies which can be subject to judicial review, exploring whether bodies which are ostensibly private in nature can be subject to judicial review if the nature or consequences of their functions and decisions are public. The document also includes supporting commentary and questions from author Thomas Webb.