(a) The board shall prescribe by rule:
(1) The amount of a bond in escrow and the amount of cash that must be kept on hand to ensure that there exists adequate reserves to pay off bettors; and
(2) Any insurance requirements for a licensee.
(b) The licensee may maintain the bond at any bank lawfully operating in this state, and the licensee must be the beneficiary of any interest accrued thereon.