Using numerous topical examples and a clear structure, this third edition textbook provides an accessible, discursive and scholarly treatment of the key contemporary issues in UK public law. Drawing upon their extensive teaching and research experience, Roger Masterman and Colin Murray offer an engaging account of the key topics which make up a constitutional and administrative, or public, law syllabus. Controversial issues and broader debates are highlighted throughout the text, allowing the reader to develop a strong understanding of both the application of key topics in the field and the socio-political context in which the constitution has developed. This fully revised edition includes detailed analysis of recent significant cases, the constitutional implications of the Covid-19 pandemic and a dedicated chapter on the consequences of Brexit.