Street Gang Patterns and Policies provides a crucial update and critical examination of knowledge about gangs and major gang control programs across the nation. Malcolm Klein and Cheryl Maxson here focus on gang proliferation, migration, and crime patterns, and highlight known risk factors that lead to youths joining gangs and to gang formation within communities. Dispelling long-standing assumptions that the public--and the media and law enforcement--have about street gangs, they present a comprehensive overview of how gangs are organized and structured. The authors assess the major gang programs across the nation, and argue that existing prevention, intervention and suppression methods, targeting individuals, groups, and communities, have been largely ineffective, when evaluated. Klein and Maxson close by offering policy guidelines for practitioners on how to intervene and control gangs more successfully. Filling an important gap in the literature on street gangs and social control, this book will be a must read for criminologists, social workers, policy makers, and criminal justice practitioners.