Deputy Michael Meiser, assigned to a specialized sheriff's department unit that monitored gang activity inside the jail ...

Gov. Katie Hobbs' order expands border security operations in four border counties, Yuma, Pima, Santa Cruz and Cochise.

Authorities once tried to break up prison gangs like the Aryan Brotherhood, Mexican Mafia and Nuestra Familia by convicting their leaders in federal court, then banishing them to places like ADX ...