This book provides a highly readable account of police work. It builds upon Introduction to Police Work (Rogers and Lewis 2007) to provide a comprehensive, in depth and critical understanding of policing in today's diverse society. Police Work: Principles and Practice meets the need for an increasingly sophisticated and professional approach to training within the police, whether this is carried out within police forces themselves or within higher education institutions. Written in an accessible style by current and former police practitioners and a nationally recognized expert on the National Intelligence Model, this book focuses -- in line with the government's agenda for workforce modernization -- on three key areas of policing: community, investigation and intelligence. It introduces readers to many important areas through the use of definition boxes, scenario boxes highlighting good practice, points to note boxes, flowcharts and diagrams as well as a wide range of questions and exercises to help apply their knowledge to different situations and scenarios. This book will be essential reading for those on probationer training programmes and a valuable resource for students taking courses in policing and criminology more generally where an advanced level of understanding of the nature of police work is required.