Mo. Rev. Stat. § 50.166

50.166. Clerk may fill in warrant for expenses — form, negotiable instrument — county treasurer access to financially relevant documents. — 1. In all cases of claims allowed against the county, and in all cases of grants, salaries, pay and expenses allowed by law, the county clerk may fill in on a form of warrant the amount due as approved by the county commission and other necessary information. The form of the warrant thus filled in by the county clerk may be transmitted to the county treasurer. The warrant may be in such form that a single instrument may serve as the warrant and the county treasurer's draft or check, and may be so designed that it is a nonnegotiable warrant when signed by the county clerk and becomes a negotiable check or draft after it has been signed by the county treasurer.

2. Upon request, the county treasurer shall have access to any financially relevant document in the possession of any county official for the purposes of processing a warrant, unless such warrant is received in the absence of a check then the county treasurer shall have access to the information necessary to process the warrant.

3. No official of any county shall refuse a request from the county treasurer for access to or a copy of any document in the possession of a county official that is financially relevant to his or her duties under section 50.330 , except that any county official may redact, remove, or delete any personal identifying information, including a Social Security number, financial account numbers, medical information, or any other personal identifying information, before submission to the county treasurer.

4. No county treasurer shall refuse to release funds for the payment of any properly approved expenditure.

(L. 1992 S.B. 833, A.L. 2021 H.B. 271)