Indiana Code Title 35. Criminal Law and Procedure § 35-33-10-5

Sec. 5. Securing Attendance of Defendant Confined in Federal Institutions.  (1) A defendant against whom a criminal action is pending in a court of record of this state, and who is confined in a federal prison or other institution either within or outside this state, may, with the consent of the attorney general of the United States, be produced in such court for the purpose of criminal prosecution, pursuant to the provisions of:

(2) When such a defendant is in federal custody as specified in subsection 1, a court in which the criminal action against such defendant is pending, may, upon application of the prosecuting attorney of such county, issue a certificate, known as a writ of habeas corpus ad prosequendum, addressed to the attorney general of the United States, certifying that such defendant has been charged by indictment or information filed against him in the specified court with the offense or offenses alleged therein, and that attendance of the defendant in such court for the purpose of criminal prosecution thereon is necessary in the interest of justice and requesting the attorney general of the United States to cause such defendant to be produced in such court, under custody of a federal public servant, upon a designated date and for a period of time necessary to complete the prosecution.  Upon issuing such a certificate, the court may deliver it, or cause or authorize it to be delivered, together with a certified copy of the indictment or information upon which it is based, to the attorney general of the United States or to his representative authorized to entertain the request.