Mich. Comp. Laws § 15.366 : — PUBLIC OFFICERS AND EMPLOYEESTHE WHISTLEBLOWERS' PROTECTION ACT — Diminishment or impairment of rights; collective bargaining agreement; protection of confidentiality of communications; disclosures

This act shall not be construed to diminish or impair the rights of a person under any collective bargaining agreement, nor to permit disclosures which would diminish or impair the rights of any person to the continued protection of confidentiality of communications where statute or common law provides such protection.