In a payroll audit, a staff auditor suspects that signatures on some of the documents being sampled for examination are not authentic. What action should the auditor take before proceeding with the examination?
- Suggest to the payroll manager that the suspicious documents should be sent to the organization's security department for forensic review.
- Keep the suspicious documents in the workpaper file until the end of the engagement, and then discuss the suspicions with the payroll manager.
- Discuss the suspicious documents with payroll staff to seek their views on the authenticity of the signatures.
- Review the suspicious documents with the chief audit executive and seek advice concerning further examination.