The scenario described involves a self-review threat, which arises when auditors review work that they previously performed or were involved in. In this case, since the CAE had initially established and managed the risk management function before a chief risk officer took over, engaging an external resource to audit this function mitigates the threat to objectivity by ensuring an independent review. This action avoids potential bias and maintains the integrity of the audit process.References: IIA guidance on objectivity and conflicts of interest.