Cooperate with law enforcement authorities to suppress gang activities. Composition of Gangs Gangs are usually formed on an ethnic or racial basis although some recent gangs have a hybrid composition. Also, another recent trend is to form gangs for economic reasons. Loosely structured, named group committed to defending its reputation and status as a gang. Usually associated with a geographic territory but may simply defend its perceived interest against rival gangs.
Members usually mark the gang's turf with graffiti.
May show characteristics of turf based gangs and defend a territory. Includes groups whose violence has an ideological or religious rationale such as racism or Satanism. Also includes groups whose members are randomly or senselessly violent. Consists of most deeply committed regular gang members who are usually responsible for instigating and committing the most serious offenses attributed to their gang. Friends, acquaintances and relatives who are somewhat knowledgeable about gang activities and who occasionally participate in gang activities.