An internal investigation log is primarily intended to track the status of investigations into unusual activity. This is to ensure that the investigations are conducted in a timely, thorough, and consistent manner, and that the results and recommendations are documented and communicated to the relevant parties12. An internal investigation log can also help the organization to identify any trends, patterns, or gaps in its anti-money laundering (AML) compliance program, and to measure its effectiveness and efficiency3.
An internal investigation log is not intended to provide training on investigations to the anti-money laundering officer and Financial Intelligence Unit (FIU), report status of investigations to the Board of Directors, or detect and monitor possible suspicious activity. These are separate functions that may involve the use of the internal investigation log, but are not its primary purpose.
References:
1: How to Conduct Effective AML Investigations - Blog | Unit211 2: BSA/AML Internal Audit: PwC2 3:
Anti-Money Laundering: 5 Steps to Conduct an Audit3