Book excerpt: Those who profit from illegally arming violent criminals and perpetuating the cycle of violence, victimization, and suffering are a special breed of bad guy. Firearms Trafficking, A Guide for Criminal Investigators, helps criminal investigators set their sights on armed violent criminals and those who traffic the crime guns that fuel this violence. This comprehensive text that provides insight into all aspects of firearms trafficking and armed violent crime investigation and easily keeps the readers interest with real-life case examples demonstrating the successful application of all the techniques discussed. This book is intended for criminal justice students, colleges and universities, criminal investigators in the U.S. and abroad, law enforcement academies, law enforcement executives, researchers, strategic planners, and policy makers.