According to the Anti-Money Laundering Specialist (the 6th edition) study guide, when a financial institution receives a law enforcement request to keep an account open that may be associated with suspicious or criminal activity, it should take the following two steps:
Maintain account records for at least five years after the request expires. This is to ensure that the financial institution can provide evidence of its compliance with the law enforcement request and the applicable anti-money laundering regulations. The five-year retention period isbased on the international standard set by the Financial Action Task Force (FATF) and adopted by many jurisdictions12.
Ask for a written request from the law enforcement agency that defines the duration. This is to protect the financial institution from potential liability and to clarify the scope and purpose of the law enforcement request. The written request should specify the time period for which the account should remain open, the reason for the request, the contact information of the law enforcement officer, and the legal authority for the request34.
Anti-Money Laundering Specialist (the 6th edition) study guide, page 57
FATF Recommendation 11, paragraph 2
Anti-Money Laundering Specialist (the 6th edition) study guide, page 58
Money Laundering website, article on “Law Enforcement Requests to Keep Accounts Open”
https://www.fincen.gov/resources/statutes-regulations/guidance/requests-law-enforcement-financial-institutions-maintain
