However, Roark, 42, still faces federal charges.
Last year, Roark was close to completing his prison stint for a lumber store robbery. However, an accusation that Roark killed a prisoner in 1994 at the Maryland House of Correction kept him incarcerated.
In November, Roark was among nearly two dozen alleged members of the gang — which started in Maryland prisons and spread to prisons around the country — who were indicted on federal racketeering charges.
According to an Anne Arundel County prosecutors' spokeswoman, Assistant State's Attorney Michael Dunty told a Circuit Court judge Monday that federal prosecutors would not provide their documents — which would go to the defense during the information-sharing pretrial process in the local case — because of concern for the federal investigation and witness safety.