Gang violence is a growing concern for politicians, police and the public. This book focuses on two cities with very different demographics and gang culture—Cincinnati, Ohio and Glasgow, Scotland—and their innovative deterrence strategies. Readers will ride along with operational police officers while they patrol the streets of these cities. They will hear the voices of senior officers, offenders and street workers as they reflect upon the impact of the street culture and its relationship with territoriality and with social and cultural inequality. The authors draw upon their ethnographic research with police officers, young offenders and street workers to analyze the different kinds of youth violence and their underlying causes. From their examination of the policy transfer principles that underpin the Cincinnati Community Initiative to Reduce Violence (CIRV), they identify potential strategies for dealing with the issues that lead to youth violence in cities in the west.