The subject of any hearing conducted under the provisions of this chapter may call witnesses on his behalf and at his expense. Such witnesses shall appear voluntarily and shall be limited to those persons who have knowledge of, or who have specific testimony about the allegations which caused the hearing to be convened. The superintendent or his designee shall provide assistance to the inmate in notifying witnesses of the time and place of the hearing as requested by the inmate. The presiding officer may, in certain cases, direct the superintendent to make any staff member or prisoner available for testimony.

The board may allow, accept, and consider telephonic testimony. The witness whose testimony is received telephonically shall be telephonically available for cross-examination.