Before July 1, 2001 and at least every two fiscal years thereafter, the Legislative Auditor shall conduct a post audit of all accounts and transactions of the state lottery office. The cost of the audit shall be paid out of the state Lottery Fund moneys designated for payment of operating expenses. The commission shall have an annual audit performed by an independent certified public accountant, and the audits may be accepted by the Legislative Auditor in lieu of performance of its post audit.