Traditionally an urban problem, gang involvement is growing on Native American reservations. This digest examines common factors in gang development and one tribe's response through a Native-centric education and juvenile justice system. The sum of handicaps associated with gang involvement has been termed "multiple marginality," and reservation gang members have been found to be adrift, marginalized counterparts of their non-Indian peers. The Pima-Maricopa tribe has developed a unique approach, based on communal responsibility, to deal with gang youths. The tribe recently built a high school, an alternative school for students with a history of delinquency, and a juvenile detention facility with a special education program. The three programs work as a unit to develop long-term plans and joint accountability for individual students. No matter which institution gang members end up in, they have access to extracurricular activities, counseling and therapy programs, tutoring with a tribal elder, mentorship from a tribal council member, and participation in tribal ceremonies. Their parents are called nightly, and when needed, students receive special education classes in an affirming, structured environment. The case of one ninth-grade gang member, and the opportunities this approach gives him, are described. (Contains 29 references.) (TD)