Judges shall not practice law.

Iowa Code § 602.1604, under JUDICIAL BRANCH.

Iowa Code § 602.1604

While holding office, a supreme court justice, court of appeals judge, district judge, or district associate judge shall not practice as an attorney or counselor or give advice in relation to any action pending or about to be brought in any of the courts of the state. 83 Acts, ch 186, §1604, 10201 ; 2003 Acts, ch 151, §31