North Carolina General Statutes Chapter 15A. Criminal Procedure Act § 15A-822. Securing attendance of prisoner outside the State as witness in proceeding in the State

(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.