"Knowledge, policy, and expertise' examines the evolving role of the Royal Commission on Environmental Pollution, and its influence on British environmental policy from its inception in 1970 to its closure in 2011. Drawing upon an extensive range of sources, this book provides the only full account of this influential body, and is a fascinating analysis of expertise and policy formation. 'Knowledge, policy, and expertise' provides a wider contribution to insights on expertise and advisory practices, offering a rich and detailed account of authority, autonomy, and trust, of the diverse roles that advisors can play, and draws important lessons about the nature of constructive interaction. Above all, it demonstrates the complexity and contingency of these interactions, contributing substantially to a theory of expertise, and drawing out important implications for the future of 'good advice."