The United States Federal Witness Protection Program's a witness protection program administered by the United States Department of Justice and operated by the United States Marshals Service that's designed to protect threatened witnesses before, during, and after a trial. Witness protection's usually required in trials against organized crime, where law enforcement sees a risk for witnesses to be intimidated by colleagues of defendants. A few states, including California, Illinois, and New Yor… (More on Witsec)