C.R.S. § 13-90.5-103

(1) To request issuance of a subpoena under this section, a party must submit a foreign subpoena to the district court for the county in which discovery is sought to be conducted in this state. A request for the issuance of a subpoena under this section does not constitute an appearance in the courts of this state. (2) When a party submits a foreign subpoena to a clerk of court in this state, the clerk, in accordance with that court’s procedure, shall promptly issue a subpoena for service upon the person to which the foreign subpoena is directed. (3) A subpoena under subsection (2) of this section must: (a) Incorporate the terms used in the foreign subpoena; and (b) Contain or be accompanied by the names, addresses, and telephone numbers of all counsel of record in the proceeding to which the subpoena relates and of any party not represented by counsel.