This book examines the constitutional treatment of national security in the UK, Canada, Australia, and New Zealand.
These 4 states share their Commonwealth heritage and are also members, alongside the USA, of the Five Eyes intelligence-sharing alliance. The book uses the tools of comparative constitutional law ito shed light on the institutions through which, and tools with which, these 4 states seek to protect their national security against the threats of both terrorism and hostile state activity. It also identifies and examines the various specialised institutions, inside and outside of legislatures, which have grown up in order to oversee the exercise of public power for national security purposes while maintaining the required secrecy.
