Colorado Revised Statutes Title 13. Courts and Court Procedure § 13-4-110. Determination of jurisdiction--transfer of cases

(1)(a) When a party in interest alleges, or the court is of the opinion, that a case before the court of appeals is not properly within the jurisdiction of the court of appeals, the court of appeals shall refer the case to the supreme court. The supreme court shall decide the question of jurisdiction in a summary manner, and its determination shall be conclusive.

(b) A party in interest shall allege that a case is not properly within the jurisdiction of the court of appeals by motion filed with the court of appeals within twenty-one days after the date the record is filed with the clerk of the court of appeals, failing which any objection to jurisdiction by a party in interest shall be waived.