Mid-Atlantic Regional Gang Investigators Network

Welcome to The Mid-Atlantic Regional Gang Investigators Network Website

The Board of Directors and its members would like to welcome you to the Mid-Atlantic Regional Gang Investigators Network, formally known as Washington/Baltimore Metropolitan Area Regional Gang Investigators Network. MARGIN is an organization consisting of federal, state and local law enforcement/criminal justice professionals, representing agencies from throughout Maryland, Virginia, Washington, D.C. The primary goal of the network is to enhance officer safety by providing relevant gang information to law enforcement officers and for the overall public safety.

In 1992, an informal group of gang investigators representing seven law enforcement agencies from throughout the Washington Metropolitan area started exchanging information. The investigators soon recognized that gangs were proliferating throughout the area, that working street gangs was complex, and that the need to share gang information was mandatory. The investigators named the group the Washington/Baltimore Metropolitan Area Regional Gang Investigators Network (MARGIN) and met on a monthly basis to exchange information on current investigations, gang structure, membership, the crime associated with their activities, and new trends and patterns. Monthly meetings were, and are today, hosted by the various participating member agencies. MARGIN was renamed as the Mid-Atlantic Regional Gang Investigators Network to better describe the Network's geographical area of concern.


  • Intelligence sharing/information exchange
  • Training
  • Legislative efforts in Maryland, Virginia, District of Columbia
  • Coordination with MARGIN area task force operations
  • Providing expert witnesses
  • Providing guest speakers and instructors
  • Provide input to organizations dealing with prevention and intervention programs.
  • Support of national efforts through NAGIA

Upcoming events

  • No upcoming events

Become a member of MARGIN today!

Join us


Click Here for Details

Recent news

Recent forum updates

  • There are no forum topics to display.

Featured member

Mid-Atlantic Regional Gang Investigators Network (MARGIN) is a 501(c)3 non-profit organization.

Mailing Address: PO Box 41 Fairplay, Maryland 21733

Powered by Wild Apricot Membership Software