Miss. Code Ann. § 19-13-35

If any person shall claim and receive from the board of supervisors of a county any fee or compensation not authorized by law, or if a member of such board shall knowingly vote for the payment of any such unauthorized claim, or any appropriation not authorized by law, he shall be subject to indictment, and, on conviction, be fined not exceeding double the amount of such unlawful charge, or may be imprisoned in the county jail not more than three months, or be subject to both such fine and imprisonment.