Applying a comparative analysis on law and practices, combined with extensive data, this book considers the legal consequences for public servants who make unauthorised disclosures of official information and the protections available for whistleblowers. The author provides an in-depth treatment of the law of unauthorised disclosures in the UK to explore the protections available and discusses the theoretical and legal justifications for the making of disclosures, as well as the arguments for maintaining official secrecy. The book discusses the legal consequences of leaking information and a full assessment of the authorised alternatives, providing recommendations for reform throughout. This book will be of interest to academics working on whistleblowing, as well as their students. The various recommendations provided in the book will be of use to whistleblowing NGOs, policymakers and Members of Parliament.