Idaho constitution
Article V
Section 9

The Supreme Court shall have jurisdiction to review, upon appeal, any decision of the district courts, or the judges thereof, any order of the public utilities commission, any order of the industrial accident board, and any plan proposed by the commission for reapportionment created pursuant to section 2, article III; the legislature may provide conditions of appeal, scope of appeal, and procedure on appeal from orders of the public utilities commission, of the industrial accident board. On appeal from orders of the industrial accident board the court shall be limited to a review of questions of law. The Supreme Court shall also have original jurisdiction to issue writs of mandamus, certiorari, prohibition, and habeas corpus, and all writs necessary or proper to the complete exercise of its appellate jurisdiction.