The following criteria are widely accepted among researchers for classifying groups as gangs […]:
- The group has three or more members, generally aged 12 to 24.
- Members share an identity, typically linked to a name, and often other symbols.
- Members view themselves as a gang, and they are recognized by others as a gang.
- The group has some permanence and a degree of organization.
- The group is involved in an elevated level of criminal activity.
Retrieved from Frequently Asked Questions About Gangs.