The supreme court may answer questions of law certified to it by the supreme court of the United States, a court of appeals of the United States, a United States district court or a tribal court when requested by the certifying court if there are involved in any proceedings before the certifying court questions of law of this state which may be determinative of the cause then pending in the certifying court and as to which it appears to the certifying court there is no controlling precedent in the decisions of the supreme court and the intermediate appellate courts of this state.
A.R.S. § 12-1861