We live in a rapidly changing society that is driven by higher and higher levels of technological advancement. New technologies are creating greater and more powerful capabilities for humanity, offering opportunities for change that are fundamentally deeper than additional hours of relaxation and greater economic prosperity. New capabilities are changing the way people view the world and their place in it. This book explores one of the 21st century's emerging and potentially powerful technologies: Augmented Reality (AR) and its application in law-enforcement. While still years from perfection, wearable AR units are currently under development. AR technology will have a dramatic impact on policing, creating innovative methods for combating crime and terrorism. However, it will also afford criminals and terrorists new opportunities for exploiting, disrupting and harming society. Thus, in order to be used effectively, police personnel need to fully understand current AR capabilities and what will emerge in the coming decades. This book presents the most up-to-date research in the field.