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Gang Types

Gangs vary extensively regarding membership, structure, age, and ethnicity. However, three basic types of gangs have been identified by gang investigators: street gangs, prison gangs, and outlaw motorcycle gangs (OMGs).

Street Gangs

Street gangs that operate throughout most of the country are a significant threat because they are the largest and control the greatest geographical area. Therefore, criminal activities such as violence and drug trafficking perpetrated by street gangs pose the greatest threat. The threat becomes magnified as national- and regional-level street gangs migrate from urban areas to suburban and rural communities, expanding their influence in most regions and broadening their presence outside the United States to develop associations with DTOs and other criminal organizations in Mexico, Central America, and Canada.

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Prison Gangs

Prison gangs pose a serious domestic threat, particularly national-level prison gangs that affiliate with Mexican DTOs and maintain substantial influence over street gangs in the communities in which they operate. Prison gangs are highly structured criminal networks that operate within the federal and state prison systems. Furthermore, these gangs operate in local communities through members who have been released from prison. Released members typically return to their home communities and resume their former street gang affiliations, acting as representatives of their prison gang to recruit street gang members who perform criminal acts on behalf of the prison gang.

Prison gangs often control drug distribution within correctional facilities and heavily influence street-level distribution in some communities. Prison gangs exert considerable control over midlevel and retail-level drug distribution in the Southwest Region and in southern California. Their trafficking activities are facilitated through their connections to Mexican DTOs, which ensure access to a continuous supply of illicit drugs that are distributed through their networks in prison or are supplied to affiliated street gangs.

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Outlaw Motorcycle Gangs

OMG-related criminal activity poses a threat to public safety in local communities in which these gangs operate because of their wide-ranging criminal activity, propensity to use violence, and ability to counter law enforcement efforts. OMGs are highly structured criminal organizations whose members engage in criminal activities such as violent crime, weapons trafficking, and drug trafficking. OMGs maintain a strong centralized leadership that implements rules regulating membership, conduct, and criminal activity. As of June 2008 state and local law enforcement agencies estimate that between 280 and 520 OMGs are operating at the national, regional, and local levels. OMGs range in size from a single chapter to hundreds of chapters worldwide. Current law enforcement intelligence estimates indicate that more than 20,000 validated OMG members, divided among hundreds of OMGs, reside in the United States.


End Notes

3. Local and regional street gangs, except for a few significant regional-level gangs, are too numerous to list in Appendix B and are, therefore, referenced wherever applicable.
4. The term "support club" refers to smaller gangs whose members regularly associate with or are friends of one of the national-level gangs.


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