Michigan Compiled Laws, Chapter 600. Revised Judicature Act of 1961 § 600.6467

Sec. 6467. The court shall have power to call upon any officer, department, institution, board, arm or agency of the state government for any examination, information or papers pertinent to the issues involved in any case then pending before the court. No state employee shall receive any additional fees or compensation for rendering such services or appearing as a witness before the court upon behalf of the state.