https://www.slab.org.uk/guidance/parole-board-procedure-governing-rules-and-process/
In the cases with which this section is concerned, the Parole Board procedure is regulated by Part IV of the Parole Board (Scotland) Rules 2001.
A tribunal is set up, consisting of three members of the Parole Board, including a person who holds or has held judicial office and whom the Chairman of the Parole Board must appoint to be chair of the tribunal. The chair of the tribunal may decide to hold a preliminary hearing, which the prisoner and their representative may attend. Before any hearing, written representations and any relevant documents may be submitted to the tribunal. At the full hearing of the case, the prisoner is entitled to be present and represented, and to give evidence, question the Scottish Ministers’ officials, call witnesses and make submissions.