Effective police leaders become adept at responding to challenge. Like other organisations, police agencies must balance constancy and predictability with adaptation and change. Even as they strive to standardise operations, most police leaders recognise the fluid context in which their agencies operate. They also understand that there are forces to which police organisations must adapt and evolve in order to remain effective in a changing world. It is those forces that drive organisational change and create new models for conducting the business of policing. This book examines the new paradigms and perspectives of modern policing.