(35)To ensure an adequate control of the activities performed by CSDs, independent audits covering the operations of the CSD, risk-management processes, compliance and internal control mechanisms should be put in place and performed regularly. The independence of audits should not necessarily require the involvement of an external auditor, provided that the CSD demonstrates to the competent authority that the independence of its internal auditor is properly ensured. In order to ensure the independence of its internal audit function, the CSD should also establish an audit committee.