Section 15A-822 - Securing attendance of prisoner outside the State as witness in proceeding in the State(a) When (1) A criminal action or proceeding is pending in a court of this State, and(2) There is reasonable cause to believe that a person confined in a correctional institution or prison of another state, other than a person confined as mentally ill, possesses information material to such criminal action or proceeding, and(3) The attendance of the person as a witness in such proceeding is desired by a party thereto, and(4) The state in which such person is confined possesses a statute equivalent to G.S. 15A-821, the court in which such proceeding is pending may issue a certificate under the seal of the court, certifying all such facts and certifying that the attendance of the person as a witness in such court is required for a specified number of days.(b) The certificate may be issued upon application of either the State or a defendant setting forth the facts specified in subsection (a).(c) Upon issuing such a certificate, the court may cause it to be delivered to a court of such other state which is authorized to initiate or undertake action for the delivery of such prisoners to this State as witnesses.N.C. Gen. Stat. § 15A-822