This book is the NSW Bar Association's lecture series on the key issues in judicial review. It emphasises essential learning for the public law practitioner, whether solicitor, barrister or judicial officer, that is not easily accessed elsewhere. The collection opens with Justice Patrick Keane's reflections on the role of the courts in public law processes. It has an overview of the grounds of judicial review by Justice John Basten and 10 other papers: the concept of jurisdictional error by Jeremy Kirk SC; statutory construction and drafting by Peter Quiggin PSM, with a commentary by Justice Nye Perram; evidence in public law cases by Neil Williams SC and Alan Shearer; constitutional and administrative law aspects of tax by Geoffrey Kennett SC and David FC Thomas; satisfaction as a jurisdictional fact by James Hutton; the High Court decision in SZMDS by Theresa Baw; the relevancy grounds and environmental and administrative law by Richard Lancaster SC and Stephen Free. There are also two forward-looking papers, one by Justice Alan Robertson on ARC Report No 50, and the other by Kristina Stern SC on the rationale for the grant of relief by way of judicial review and potential areas for future development. Like the 2018 collection, Key Issues in Public Law, this work is designed to fill a gap in the libraries of judges and practitioners.