The previous (fourth) edition of this book was produced in the light of the Human Rights Act, devolution, the proposed Freedom of Information Act and electoral reform. Many of these constitutional changes are now an accepted feature of British life and have generated much case law and political debate. There are also a number of constitutional changes being mooted under a second Labour term, including regional assemblies, further reform of the House of Lords and the possible introduction of the Euro which are discussed in this fifth edition of the text. The work is intended for students of both politics and law, with material to illuminate the political process for the former and broaden the subject for the latter. The authoritative explanatory narrative makes it appropriate as a textbook for those institutions which adopt a contextual approach to public law courses and as a complement to standard textbooks for those institutions which adopt a more black letter approach.