Cal. EDC § 14506

The Controller shall conduct any additional audits that are necessary to carry out the Controller’s duties and responsibilities pursuant to this code and the Government Code. This chapter does not authorize a local educational agency, or a subcontractor or subrecipient, to constrain, in any manner, the Controller from carrying out additional audits. To the extent that the required financial and compliance audits provide the Controller with the information necessary to carry out the Controller’s responsibilities, the Controller shall plan additional audits as appropriate to avoid unnecessary duplication of audit efforts. In performing additional audits, the Controller shall, to the extent deemed appropriate under the circumstances, build upon the work performed during the required financial and compliance audit. The Controller shall not bill the local educational agency for the costs of these additional audits.