A hearing official or Board member may be recused in any proceeding in which the hearing official or Board members impartiality might reasonably be questioned, including but not limited to the following circumstances:
(a) has a personal bias or prejudice concerning a party or a partys lawyer, is or could have been a witness or victim in any matter relating to the offender.
(b) has a familial, financial, or other relationship with anyone involved in the case that might reasonably be seen as a bias.
(c) served as a lawyer, judge, agent, or caseworker in any previous matter with the offender.