# Page: Investigation Notes and Audit Trail

## Purpose

This page explains the role of investigation notes and the audit trail in maintaining a clear record of fraud and AML actions.

## Investigation notes

Investigation notes are used to document:

- what was reviewed;
- what evidence was found;
- what decision was made;
- what follow-up is required.

## Audit trail

The audit trail captures the history of actions taken on a case, score, or configuration item. This supports accountability and compliance review.

## Example usage

Example: an investigator adds a note explaining that a transaction was reviewed due to a high-risk score and that the case was escalated for a manual decision.

## Recommended practices

- write clear and factual notes;
- avoid ambiguous language;
- update notes whenever the case changes state;
- keep records consistent with the final decision.

## Notes

Notes and audit history are essential for explaining decisions later, especially during reviews, investigations, or compliance checks.