Arkansas Code
Subchapter 3 - Uniform Rendition of Prisoners as Witnesses in Criminal Proceedings Act
§ 16-43-306. Certificate for obtaining prisoner from another state to testify in this state

If a person confined in a penal institution in any other state may be a material witness in a criminal action pending in a court of record or in a grand jury investigation in this state, a judge of the court may certify:
(1) That there is a criminal proceeding or investigation by a grand jury or a criminal action pending in the court;
(2) That a person who is confined in a penal institution in the other state may be a material witness in the proceeding, investigation, or action; and
(3) That his presence will be required during a specified time. The certificate shall be presented to a judge of a court of record in the other state having jurisdiction over the prisoner confined, and a notice shall be given to the Attorney General of the state in which the prisoner is confined.