A system designed to protect state inmates has led to increased violence involving so-called ‘dropout’ gangs of prisoners who have defected from other groups. Authorities say one group, the Riders, ...

California, with its enormous urban population and complex socioeconomics, has become home to some of the most infamous and influential criminal gangs in the United States. Names like the Crips, ...

Law enforcement officials estimate that tens of thousands of gangs are active across the United States, ranging from neighborhood street gangs to prison gangs and large organized criminal networks.

SIOUX FALLS, S.D. (KELO) — Some of the gangs South Dakota Attorney General Marty Jackley listed as tied to violence at the men’s prison in Sioux Falls have the largest gang presence in prisons around ...

Law enforcement officials estimate that tens of thousands of gangs are active across the United States, ranging from neighborhood street gangs to prison gangs and large organized criminal networks.