DOC inmate filed petition seeking restoration of visitation privileges as to one visitor, and alleging violation of due process rights. Court properly dismissed petition, as Plaintiff failed to state a claim for mandamus or declaratory relief. No state-created liberty interest in visitation arises from Section 3-7-2(f) of Unified Code of Corrections. Prison officiaols exercise discretion as to inmate visitation and their decisions are not subject to mandamus.(STEIGMANN and KNECHT, concurring.)