In all cases in which the judge is a party, or in which he is interested, or when he is related to either party by consanguinity or affinity within the sixth degree, and in case of his sickness, absence, or inability to act, the city judge may call in a city judge, justice of the peace, or some qualified person to act in his stead or when a disqualifying affidavit is filed against him pursuant to the supreme court's rules on disqualification and substitution of judges. A city judge of any city or a justice of the peace of any county may sit as city judge at the city judge's request. (1975 Code § 2.48.070; amd. 2008 Code)