A comprehensive overview of three core areas of public law: secondary legislation, public order law, and judicial review. The first source explains how secondary legislation is enacted, providing government bodies with the detailed rules necessary to implement broader primary legislation, and outlines the controversial "Henry VIII powers" and the affirmative and negative resolution procedures for its enactment. The second source covers public order law, focusing on the Public Order Act 1986, which regulates public processions and assemblies by requiring notice and granting police powers to impose conditions or prohibitions to prevent serious disorder, all while balancing these measures against human rights like freedom of assembly. Finally, the third source describes judicial review as the mechanism through which courts ensure public bodies act lawfully and within their powers (legality), detailing the three grounds for challenge—illegality, irrationality (Wednesbury unreasonableness), and procedural impropriety—and confirming the evolving power to review even Royal Prerogative powers.