Iowa Const. art. V, § 4
The supreme court shall have appellate jurisdiction only in cases in chancery, and shall constitute a court for the correction of errors at law, under such restrictions as the general assembly may, by law, prescribe; and shall have power to issue all writs and process necessary to secure justice to parties, and shall exercise a supervisory and administrative control over all inferior judicial tribunals throughout the state.
Amended by Amendment 21 (1962)
See Iowa Code §602.4102, 602.4201, 602.4202, 624.2