FBI-CJIS Security Policy Compliance Officer
Mark Rivera, Customer Retention Manager and CJIS Security Compliance Officer with Vigilant Solutions, served for sixteen years with the Maryland State Police, retiring at the rank of First Sergeant with thirteen of those years at the supervisory and command level. He holds a Master of Science Degree in Management from The Johns Hopkins University and Secret clearance through the FBI, Baltimore.
Gang members use hand signs to communicate with each other and to challenge rival members or law enforcement officers in what they call "throwing signs." After forming in Los Angeles in the early 1970s, the Bloods street gang spread to the East Coast and formed "sets." These sets include the Piru Bloods, Fruit Town Brims, and South Side Brims (in western Maryland). The hand signs in this gallery were recovered during a multi-agency investigation earlier this year. Photos courtesy of Det. Rich Keys of the Maryland State Police.