Mo. Rev. Stat. § 110.240
It is the duty of the county treasurer to draw a check as county treasurer upon a county depositary in favor of the legal holder thereof, and to charge the same to the fund upon which it is drawn. No county treasurer shall draw any check upon the funds in any depositary unless there is sufficient money belonging to the fund upon which the check is drawn to pay the same, and no money belonging to the county shall be paid by any depositary except upon checks of the county treasurer. In case any bonds, coupons or other indebtedness of the county are payable by the terms of the bonds, coupons or other debts at any particular place other than the treasury of the county, nothing contained in this section shall prevent any county commission from causing the treasurer to place a sufficient sum at the place where such debts shall be payable, at the time of their maturity, to meet the same.
§ 110.240, RSMo