Idaho Code § 32-410: Penalty for false return.

If any person, authorized to solemnize marriage, shall wilfully make a false return of any marriage or pretended marriage to the recorder; or, if the recorder shall wilfully record a false return of any marriage, he shall be deemed guilty of a misdemeanor, and, upon conviction thereof, shall be punished by a fine of not less than $100.00, and by imprisonment for not less than three (3) months.