According to the ACFE Manual, in public-sector audits conducted under INTOSAI standards, "government auditors might not have the same level of discretion as private auditors to withdraw from engagements when fraud is detected." INTOSAI standards focus more on reporting and public transparency rather than withdrawal.
Reference:ACFE Fraud Examiners Manual, 2020 International Edition -Auditors' Fraud-Related Responsibilities, Section on INTOSAI Standards.

CFEs must act ethically and responsibly when handling sensitive information. Eliece should inform Jewel that she will try to maintain confidentiality but must adhere to professional and ethical obligations, which may require disclosing the information to appropriate parties such as her employer or relevant authorities. This balanced response encourages transparency while maintaining ethical standards.

Comprehensive and Detailed in Depth Explanation:
Publicizing whistleblower policies both internally and externally demonstrates the organization's commitment to transparency and ethical conduct. Best practices include clearly communicating the reporting process, available protections, and encouraging reporting by all employees without fear of retaliation. Including a list of all past misconduct is unnecessary (eliminating A), while emphasizing protections only for lower-level staff (D) or focusing on penalties (C) undermines the policy's intent.
Reference:Fraud Examiners Manual, 2022, Fraud Prevention and Deterrence, Fraud Prevention Programs - Section 4.602, 4.617.

Tips have consistently been the leading method for detecting occupational fraud, as confirmed by ACFE research:
"Figure 9 shows that the leading detection methods are tips, internal audit, and management review. This finding is not surprising as these have been the three most common means of detecting occupational fraud in every edition of the report since 2010." Reference: ACFE Fraud Examiners Manual, 2020 International Edition - Fraud Prevention and Deterrence, Section 4.248.