The data sources for this project span thirteen train operating companies across the UK, varying levels of risk of workplace violence, as well as different types of Public-Facing professionals and different BWV devices. Using a mixed-methods approach, this volume ultimately provides insight into the effectiveness of these devices in preventing and controlling risks of violence in the workplace, and recommendations on how to use them. This book is ideal for professionals working in workplace violence reduction and scholars who study technological advents, violence prevention and jurists who are interested in decisions to prosecute offenders.