 The decision complained of must have been taken by a public body, i.e.a body established by statute or otherwise exercising a public function.In "R v Panel for Takeovers and Mergers, ex parte Datafin" [1987] 1 QB 815, the Court of Appeal held that a privately established panel was amenable to judicial review because it in fact operated as an integral part of a governmental framework for regulating mergers and takeovers, while those affected had no choice but to submit to its jurisdiction.