The secretary, any member of the board of review or appeal tribunal hearing officer shall withdraw from any proceeding in which the hearing officer, member of the board of review or secretary cannot accord a fair and impartial hearing or when a reasonable person would seriously doubt whether the hearing officer, board member or secretary could be fair and impartial. Any party may request a disqualification of any appeal tribunal hearing officer or board of review member by filing an affidavit with the board of review or appeal tribunal promptly upon discovery of the alleged grounds for disqualification, stating with particularity the grounds upon which it is claimed that the person cannot be fair and impartial. The disqualification shall be mandatory if sufficient factual basis is set forth in the affidavit of disqualification. If a member of the board of review is disqualified or withdraws from any proceeding, the remaining members of the board of review may appoint an appeal tribunal hearing officer to sit on the board of review for the proceeding involved.
NMS § 51-1-8