Mich. Comp. Laws § 38.466
Any person who is served with a subpoena to appear and testify, or to produce books and papers issued by the commission in the course of the investigation conducted under the provisions of this act, and who refuses or neglects to appear or to testify as commanded in the subpoena, is guilty of a misdemeanor. The fees of witnesses for attendance and travel shall be the same as the fees of witnesses in the circuit court for the county in which the township is situated, and shall be paid from the appropriation for the expenses of the commission. The judge of the circuit court, either in term or vacation, upon application of the commission, shall compel the attendance of witnesses, the production of books and papers and giving of testimony before the commission by attachment for contempt or otherwise in the same manner as the production of evidence may be compelled before the court. Every person who, having taken an oath or made affirmation in a proceeding, swears or affirms wilfully, corruptly or falsely is guilty of a misdemeanor.
MCL 38.466