Historically, a tour guide has made monthly cash deposits averaging $10,000.

 The financial institution should perform further investigation to verify the legitimacy of the tour guide’s explanation and the source of funds. If the investigation reveals any suspicious or unusual activity, such as inconsistent cash flow patterns, involvement of high-risk customers or jurisdictions, or indications of money laundering or terrorist financing, the financial institution should report the activity to the authorities and consider terminating the relationship. The financial institution should also document the investigation and its findings, and update the customer’s risk profile accordingly.

CAMS Study Guide - 6th Edition, Chapter 4, page 112

CAMS Certification Exam Outline, Domain 1, Task 1.2, Skill 1.2.2

ACAMS MoneyLaundering.com, Article: “How to Conduct Effective Customer Due Diligence”