Which of the following would be the most effective in helping to detect fraud?

Fraud awareness training is considered the most effective option listed for detecting fraud within an organization. Training helps in raising awareness among employees about the signs of fraud, the importance of reporting suspicious activities, and the organization ' s policies related to fraud prevention. A strong awareness program serves as both a deterrent and a detection mechanism, making employees vigilant and more likely to identify and report fraudulent activities.

Institute of Internal Auditors (IIA) resources on fraud detection and prevention best practices.