Michigan Compiled Laws, Chapter 14. Attorney General § 14.259

Sec. 9. When the attorney general requires the attendance of any person, as provided in section 8,  1 he shall issue an order setting forth the time when and the place where attendance is required and shall cause the same to be delivered to or sent by registered mail to the person at least 14 days before the date fixed for attendance. Such order shall have the same force and effect as a subpoena and, upon application of the attorney general, obedience to the order may be enforced by the probate or circuit court having jurisdiction of the charitable trust in the county where the trust may be in existence or administered or the person receiving such notice resides or is found, in the same manner as though the notice were a subpoena. The court, after hearing, for cause, and upon application of any person aggrieved by the order, shall have the right to alter, amend, revise, suspend or postpone all or any part of its provisions.