Appointment of auditor: Board may appoint auditors to inspect brokers and recover inspection expenses from brokers. The Board may appoint a qualified auditor to inspect or investigate a stock broker's books and affairs with the same powers as the inspecting authority under Regulation 27, and the stock broker must comply with obligations under Regulation 29; if such inspection results in adverse findings leading to action under Regulation 31, the Board may recover from the stock broker any expenses, including auditors' fees, incurred for the inspection or investigation.