the account officer should avoid disclosing any details of the investigation to the customer, as this could compromise the integrity of the law enforcement inquiry, or even constitute tipping off, which is a criminal offense in many jurisdictions12. The account officer should only inform the customer that a legal request has been made, and that the bank is obliged to comply with it, without revealing the nature or scope of the request3. The account officer should also document the communication with the customer, and report it to the appropriate internal authority, such as the compliance officer or the legal department4.

1: CAMS Study Guide, 6th Edition, Chapter 5: Compliance Standards for Anti-Money Laundering (AML) and Combating the Financing of Terrorism (CFT), page 151-152. 2: Tipping Off: What It Is and How to Avoid It, ACAMS Today, March 2019. 3: How to Handle Law Enforcement Requests, ACAMS Webinar, June 2018. 4: Best Practices for Responding to Law Enforcement Inquiries, ACAMS White Paper, October 2017.