What rights does an inmate have to a state administrative or disciplinary hearing before he is placed in disciplinary segregation?

The Fourteenth Amendment extends the protections of the Fifth Amendment's Due Process Clause to the state. Wolff v. McDonnell, 418 U.S. 539, 556 (1974). Prisoners are entitled to certain processes before they are subjected to administrative or disciplinary hearings and classifications. For example, before being placed in disciplinary segregation, due process dictates that a prisoner is entitled to: (1) a written statement at least 24 hours before the disciplinary hearing that includes the charges, a description of the evidence against the prisoner, and an explanation for the disciplinary action taken; (2) an opportunity to present documentary evidence and call witnesses, unless calling witnesses would interfere with institutional security; and (3) legal assistance where the charges are complex or the inmate is illiterate. Id. at 563-70.