Mo. Rev. Stat. § 488.024
As provided by section 57.955, there shall be assessed and collected a surcharge of three dollars in all civil actions filed in the courts of this state and in all criminal cases including violation of any county ordinance or any violation of criminal or traffic laws of this state, including infractions, but no such surcharge shall be assessed when the costs are waived or are to be paid by the state, county or municipality or when a criminal proceeding or the defendant has been dismissed by the court. For purposes of this section, the term "county ordinance" shall not include any ordinance of the City of St. Louis. The clerk responsible for collecting court costs in civil and criminal cases shall collect and disburse such amounts as provided by sections 488.010 to 488.020. Such funds shall be payable to the sheriffs' retirement fund.
§ 488.024, RSMo