Accessible and portable, this Handbook provides all counter-terrorism practitioners with an authoritative, operational guide to anti-terrorism legislation. It also contains important contextual chapters on the counter-terrorism operational framework, the national structures and strategies, and the role and functions of key agencies. The fourth edition includes coverage of the Government's updated CONTEST Strategy, Cyber Security Strategy, National Security Strategy and the national response to terrorist emergencies. It also presents a summary of the current threat in the UK covering the last five years, a new chapter on overseas counter-terrorism strategy, new case studies on counter-terrorism investigations, guidance on the Government Protective Marking Scheme, and practical scenarios and checklists to illustrate the operational application of anti-terror laws. The legislative section, brought fully up to date by the highly regarded Police National Legal Database (PNLD), focuses upon terrorist offences, police powers and procedures. These provisions are accompanied by explanatory notes, related case law, and points to prove, ensuring clear and quick translation of complex powers for the practitioner. Providing with an operational guide to terrorism and the law, this book is an ideal reference and resource for operational police officers and counter-terrorism practitioners.