The purpose of this report is to use data from a sample of recently booked arrestees in Maricopa County to examine the scope and nature of Maricopa County’s gang problem. In particular, this report supplements data presented in the bi-annual report on gangs conducted by the Arizona Criminal Justice Commission, which relies on official police data and their occasional white paper on gangs that relies on self-report data from school youth. We organized our analyses around six research questions: (1) what proportion of adult arrestees are involved in a gang, and what are the socio-demographic differences between those who are associated with a gang and those who are not; (2) what are the rituals associated with gang joining; (3) how do gang and non-gang arrestees differ in their experiences with crime, drug use and victimization; (4) what is the organizational structure and composition of gangs; (5) how do members socially identify with their gang; and (6) how and why do members leave their gang?

As part of the Bureau of Justice Assistance’s Smart Policing Initiative, the Glendale Police Department and the Center for Violence Prevention and Community Safety at Arizona State University found that convenience stores -- particularly Circle K's -- disproportionately contributed to crime and disorder in the city of Glendale. The Center reached out to other law enforcement agencies in the Phoenix metropolitan area, and in June 2011, they authored a report based on 2010 data from four cities: Glendale, Mesa, Phoenix, and Tempe. The 2010 report revealed that, when compared to other convenience stores Circle K’s, were disproportionately responsible for crime and disorder, regardless of their neighborhood or city.