Michigan Compiled Laws, Chapter 388. Schools and School Aid § 388.555

Sec. 5. The superintendent of public instruction by himself, his assistants, or any duly authorized agent, shall have authority at any time to investigate and examine into the conditions of any school operating under this act as to the matters hereinbefore set forth and it shall be the duty of such school to admit such superintendent, his assistants or authorized agents and to submit for examination its sanitary condition, the records of enrollment of pupils, its courses of studies as set forth in section 1 of this act  1 and the qualifications of its teachers. Any refusal to comply with provisions herein on the part of such school or teacher shall be considered sufficient cause to suspend the operation of said school after proceedings taken as stated in section 4 of this act.  2