The supreme court shall designate three district judges to sit as a court to hear and decide such charges. [C27, 31, 35, §10934-b4; C39, § 10934.4; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §610.30 ] 83 Acts, ch 186, §10202(2) CS83, §602.10128