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Rick Scott, Governor
Florida Department of Corrections, Secretary Julie L. Jones

Florida Department of Corrections
Julie L. Jones, Secretary

A Brick wall spray painted with gang symbols.

Gang and
Security Threat Group


In 1992, the Florida Department of Corrections began its efforts to identify the levels of gang activity within its inmate/offender population. Although we had not realized a significant number of disruptive incidents were attributed to gang activity, national trends and an increase in the intake of younger inmates prompted the Security Threat Group (STG) management initiative.

The result is the comprehensive intelligence gathering program that has literally given us a "blueprint" of gang activity in Florida. The Security Threat Intelligence Unit (STIU) is now recognized as a national leader in STG identification, assessment and management. Although our primary focus is on inmates and offenders, we are committed to sharing what we learn with criminal justice agencies and the public:

  • Gang Basics - Basic questions and research materials.
  • F.A.Q. - What is a criminal gang? Who is a criminal gang member?
  • Chicago Based - These gangs emerged in the early 1960's and have two primary alliances: People Nation and Folk Nation.
  • Nation Sets - The People Nation and Folk Nation are not gangs - they are alliances under which gangs are aligned.
  • L.A. Based - Bloods and Crips are probably the most widely recognized gangs.
  • Prison Gangs - There are six major prison gangs that are recognized nationally for their participation in organized crime and violence.
  • Florida Gangs - List of gangs/security threat groups encountered.
  • Supremacy Groups - Information on racial supremacy and neo-Nazi groups.
  • Awareness Strategies - Does your community have gangs? Why do youths join gangs?
  • Links - Additional resources on the internet.

STIU Mission Statement

Maintain safe and secure operations for staff, visitors, and inmates/offenders by identifying, certifying and monitoring Security Threat Group (STG) activity, coordinating all intelligence with fellow criminal justice agencies, and providing community awareness programs and education.

Here is what we can do for your community or criminal justice agency:

Gang symbols and signs
Do you recognize any of these? Do you know what they mean? If not, learn more.
  • Presentations and Training
  • Graffiti Analysis
  • Communication Decoding
  • Group Profiles
  • Respond to Questions and Concerns
  • Identify Local Resources

Current intelligence developed by the STIU shows that STGs can be found throughout the United States.

In June 2008 the State of Florida’s Attorney General unveiled a Statewide Gang Reduction Strategy. This strategy can be found at:

Contact us at:

Security Threat Intelligence Unit
501 South Calhoun Street
Tallahassee, FL 32399-2500
Fax: 850-410-4137


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