When planning to audit an outsourced function, the most appropriate first step for an internal auditor is to understand the objectives and strategies of the new arrangement. This step is crucial because it sets the foundation for the entire audit process. By understanding the objectives and strategies, the auditor gains insights into the rationale behind the outsourcing decision, the expected outcomes, and how these align with the organization's overall goals. This understanding helps in identifying key risks, establishing relevant audit criteria, and tailoring the audit scope and procedures accordingly. Without this initial step, the auditor may miss critical aspects of the outsourced arrangement, leading to an incomplete or ineffective audit.
:
Institute of Internal Auditors (IIA) Practice Guide: "Auditing Outsourced Activities" COSO Enterprise Risk Management Framework

If operational management has not implemented effective actions to address a significant control breach, the most appropriate next step for the chief audit executive is to discuss the matter with senior management. This step involves escalating the issue to a higher level of authority to ensure that the risks associated with the control breach are properly understood and addressed. If senior management fails to take appropriate action, the CAE may then escalate the issue to the board.
:
IIA Standard 2500: Monitoring Progress
IIA Practice Guide: Auditing Organizational Governance

The greatest assurance over management's assertions would be provided by evaluating the completeness of the report and management's responses to identified deficiencies. This involves ensuring that all relevant control processes and deficiencies have been identified, and that management has provided appropriate and comprehensive responses to each issue. This step ensures that the internal control assessment is thorough and that management is actively addressing any weaknesses. References:
* The IIA's International Standards for the Professional Practice of Internal Auditing (Standards), specifically Standard 2130 - Control.
* The IIA's Practice Guide on Assessing the Adequacy of Internal Controls.

Proper engagement supervision is documented through formal records that show a systematic review and oversight process. A completed engagement workpaper review checklist provides evidence that the supervisor has reviewed and approved the work done by the audit team. This formal checklist ensures all critical aspects of the engagement are reviewed systematically, meeting the standards for proper supervision documentation.
References:
* "Internal Auditing: Assurance & Advisory Services" (The Institute of Internal Auditors)
* "International Standards for the Professional Practice of Internal Auditing" (IIA)

To increase the deterrent effect of a code of business conduct, it should include appropriate descriptions of penalties for misconduct and notifications that violations may lead to criminal prosecution. These elements clearly communicate the serious consequences of unethical behavior, thus reinforcing the importance of adhering to the code. References: = IIA Practice Guide on "Evaluating Ethics-related Programs and Activities".