Administrative Law in Hong Kong – Third Edition provides a comprehensive and timely overview of the jurisprudence in administrative law in Hong Kong, including key developments since 2013. This edition delivers a detailed analysis of the evolution of core legal principles, alongside engagement with key conceptual debates that continue to shape the structure and function of administrative law. Carefully selected extracts from leading authorities are included to enhance accessibility and allow readers to appreciate the law’s practical application. Building on the judicially endorsed earlier edition of this work, the latest edition will remain an authoritative source for judges, practitioners, academics, and students alike. This edition endeavours to state the law as at July 2025. What's new in this edition: Reviewing latest developments in the law of proportionality and fundamental rights since Hysan Development & ors v Town Planning Board (2016) 19 HKCFAR 372, including recent decisions such as Sham Tsz Kit v S-J [2023] 6 HKC 91 Recent decisions relating to what a public law matter is (Sime Darby Motor Services Ltd v Director of Lands [2024] 3 HKC 678), and the circumstances in which a public law challenge can be successfully raised to a criminal law charge (HKSAR v Chow Hang Tung [2024] 3 HKC 44). Recent decisions in relation to the limits of judicial review in the National Security Law context (Lai Chee Ying v Committee for Safeguarding National of the HKSAR & Anor (No 2) [2024] 4 HKC 575; HKSAR v Lai Chee Ying (No 4) [2023] 4 HKC 660).