Arizona Revised Statutes Title 13. Criminal Code § 13-4111. Witness for defendant;  grounds;  application;  issuance of commission;  stay of trial

A. When an issue of fact is joined upon an indictment or information, the defendant may have any material witness residing without the state examined in his behalf, as prescribed in this article, upon application to the court in which the action is pending, supported by an affidavit showing:

B. If the court is satisfied of the truth of the facts stated and that the examination of the witness is necessary to the attainment of justice, an order shall be made that a commission be issued to take his testimony.

C. The trial of the indictment or information may be stayed for a time reasonably sufficient for the execution and return of the commission.