1. Association of Certified Fraud Examiners (ACFE). Fraud Examiners Manual, 2023 International Edition. Section 2, "Asset Misappropriation: Cash Schemes," subsection "Expense Reimbursement Schemes." The manual details how expense reimbursement schemes are perpetrated, often originating from cash advances. It emphasizes the importance of tracking advances to ensure they are cleared with legitimate expense reports, stating that outstanding advances should be investigated.
2. Singleton, T. W., & Singleton, A. J. (2010). Fraud Auditing and Forensic Accounting (4th ed.). John Wiley & Sons. Chapter 6, "Cash Larceny and Skimming," discusses controls over cash disbursements. The text explains that advances to employees must be properly controlled and accounted for through expense reports to prevent them from becoming fraudulent disbursements. (See specifically discussion on controls for cash disbursements).
3. Albrecht, W. S., Albrecht, C. O., Albrecht, C. C., & Zimbelman, M. F. (2016). Fraud Examination (5th ed.). Cengage Learning. Chapter 8, "Cash Misappropriation Schemes," explains that a common red flag for expense reimbursement fraud is outstanding cash advances that are not cleared in a timely manner, highlighting the need for examiners to review these specific transactions.