Idaho Rules of Civil Procedure Rule 40(d)(2). Disqualification for Cause.
(A) Grounds. Any party to an action may disqualify a judge or magistrate for cause from presiding in any action upon any of the following grounds:
1. That the judge or magistrate is a party, or is interested, in the action or proceeding.
2. That the judge or magistrate is related to either party by consanguinity or affinity within the third degree, computed according to the rules of law.
3. That the judge or magistrate has been attorney or counsel for any party in the action or proceeding.
4. That the judge or magistrate is biased or prejudiced for or against any party or the case in the action.
(B) Motion for Disqualification. Any such disqualification for cause shall be made by a motion to disqualify accompanied by an affidavit of the party or the party's attorney stating distinctly the grounds upon which disqualification is based and the facts relied upon in support of the motion. Such motion for disqualification for cause may be made at any time. The presiding judge or magistrate sought to be disqualified shall grant or deny the motion for disqualification upon notice and hearing in the manner prescribed by these rules for motions.
(Adopted June 15, 1987, effective November 1, 1987.)