Mont. Code Ann. § 7-32-2249

A detention center administrator who falsely represents to the governing body of a local government the actual expenses of boarding detention center inmates, furnishing food and supplies, or providing services, who presents to the governing body false items in a claim or false vouchers, or if the administrator is not a private detention center administrator, who makes any profit from the keeping of inmates in the administrator's custody and a person who gives a false item or false voucher to be used by the detention center administrator in any claim against the local government is guilty of a misdemeanor.