Mo. Rev. Stat. § 313.815
A licensee licensed to operate gambling games under sections 313.800 to 313.850 shall post a bond or other form of surety from a firm licensed to conduct a surety business in this state, as approved by the commission, to the state of Missouri before the license is issued in a sum as the commission shall fix, with sureties approved by the commission. The bond or other form of surety approved by the commission shall be used to guarantee that the licensee faithfully makes the payments, keeps its books and records and makes reports, and conducts its gambling games in conformity with sections 313.800 to 313.850 and the rules adopted by the commission. The bond or other form of surety may be used to guarantee the completion of any expansion or modification of a gaming facility in a time period which shall be determined by the commission or three years from August 28, 2000, whichever is later. Failure to complete an approved expansion or modification of a gaming facility within such time period as aforesaid may be considered sufficient grounds for not renewing the license for that gaming facility. The bond or other form of surety approved by the commission shall not be cancelled by a surety on less than thirty days' notice in writing to the commission. If a bond or other form of surety approved by the commission is cancelled and the licensee fails to file a new bond or other form of surety approved by the commission with the commission in the required amount on or before the effective date of cancellation, the licensee's license shall be revoked. The total and aggregate liability of the surety on the bond or other form of surety approved by the commission is limited to the amount specified in the bond or other form of surety approved by the commission.
§ 313.815, RSMo