Me. Rev. Stat. tit. 30-A, § 5604

The treasurer of any municipality shall not pay out any funds for an account or claim against the municipality unless the account or claim is itemized and declared to be a public record. Notwithstanding Title 17-A, section 4-A, violation of this section is a Class E crime, punishable by a fine of not more than $300 or by imprisonment for not more than 30 days, or both.