Mich. Admin. Code R. 125.1022
Rule 22. All final board decisions on complaints of alleged noncompliance shall be based on the record and on a finding of fact and conclusion of law that a violation exists or does not exist. When the hearing is conducted subsequent to a request made pursuant to R 125.1020(b), the owner has the burden of proving that a violation does not exist. When a hearing is conducted subsequent to a request made pursuant to R 125.1021(c), the complainant has the burden of proving that a violation exists and may request that any investigation report issued pursuant to an investigation conducted in accordance with R 125.1019 is considered and made part of the record. Evidence admitted to prove or refute a finding shall be governed by rules applicable to a nonjury civil case in circuit court and evidence relied on by a reasonably prudent person in the conduct of his or her affairs.
Mich. Admin. Code R. 125.1022