Mo. Rev. Stat. § 370.395

Notwithstanding any other provision of law, the commissioner of administration may, in the same manner as provided in section 33.103, deduct from any state employee's compensation warrant any amount authorized by the employee for the purchase of shares in any credit union which is located in this state, has a state charter, and is insured by an agency of the United States government, or a credit union share guaranty corporation approved by the director.