If a new internal auditor suspects fraud, the appropriate action is to document supporting information and recommend an investigation to the appropriate audit management, such as the chief audit executive (CAE).
This approach maintains the auditor's objectivity and ensures that suspicions of fraud are handled by following the proper channels and procedures established within the organization for such matters.References: IIA guidance on fraud and the auditor's role in fraud detection, which emphasizes the importance of documenting evidence and escalating fraud concerns through proper management channels.

The most appropriate role for internal audit in an organization's risk management process is reporting to the board on management's assessment of current risks. This role involves providing assurance on the effectiveness of the organization's risk management processes, including the accuracy and effectiveness of management's risk assessment. Internal audit should not be directly involved in establishing risk management frameworks or developing controls, as these are management responsibilities.References: The Institute of Internal Auditors (IIA) - Standards and Guidance on Risk Management