17.3 Types of Law Enforcement Requests: Subpoenas, Court Orders, 314(a), and International Requests

Key Takeaways

  • FinCEN 314(a) requests ask institutions to search records for named subjects and report matches within 14 days, but they do not compel production of the records themselves.

  • The US Right to Financial Privacy Act of 1978 limits federal government access to bank records of individuals and small partnerships, with exceptions such as grand jury subpoenas.

  • UK investigators can obtain production orders, customer information orders, account monitoring orders and account freezing orders under the Proceeds of Crime Act 2002.

  • Mutual legal assistance treaties are the formal channel for cross-border evidence requests, while Egmont Group FIUs exchange financial intelligence with each other.

Last updated: October 2026

CAFCA sub-topic 4.6 covers the types of law enforcement requests, such as requests for information and court orders, both domestic and international. Knowing the instrument tells you whether you must comply, what you may disclose, how quickly you must act, and whether the customer can be told.

United States

RequestIssued byCompels?Key points
Grand jury subpoenaFederal prosecutor for a grand juryYesProduction of records; often accompanied by a request not to notify the customer
Administrative subpoena or summonsAgencies with statutory power (for example the IRS)Yes, within the agency's authorityScope is limited to the statute
Search or seizure warrantCourt, on probable causeYesCan authorise seizure of funds in accounts
Court orderCourtYesCan require production or restrain assets
National Security LetterFBI, for certain financial records in national security investigationsYesUsually comes with non-disclosure requirements
314(a) requestFinCEN, on behalf of law enforcementSearch and report onlySearch accounts (previous 12 months) and transactions (previous 6 months) for named subjects and report matches within 14 days. Confidential; not a subpoena, so producing records needs separate legal process
Request for SAR supporting documentationFinCEN or law enforcementYes, for filersMust be provided on request without a subpoena
Keep-open letterLaw enforcement agencyNoAsks the firm to keep an account open; the decision stays with the firm (Chapter 15)
Voluntary requestAny agencyNoDisclose only with a lawful basis under privacy laws

The Right to Financial Privacy Act of 1978 (RFPA) limits federal government access to the records of bank customers who are individuals or partnerships of five or fewer. Generally it requires legal process and notice to the customer, with exceptions that include grand jury subpoenas and SAR reporting. Legal teams check RFPA, the Gramm-Leach-Bliley Act and state rules before making any voluntary disclosure.

United Kingdom

Under the Proceeds of Crime Act 2002 (POCA), investigators can apply to court for:

  • Production orders (section 345), requiring specified material to be produced.
  • Customer information orders (section 363), requiring a firm to say whether a person holds accounts and to give details.
  • Account monitoring orders (section 370), requiring transaction information for up to 90 days.
  • Account freezing orders (section 303Z1, inserted by the Criminal Finances Act 2017), freezing funds in accounts pending forfeiture proceedings.
  • Further information orders (section 339ZH), which the NCA can seek after a SAR.

Data protection law also allows voluntary disclosure to law enforcement where it is necessary for crime prevention and the exemption conditions are met. The firm documents its decision.

International requests

  • Mutual legal assistance treaties (MLATs): formal government-to-government requests for evidence, such as bank records, for use in foreign proceedings. They are slow but provide admissible evidence.
  • Letters rogatory: court-to-court requests where no treaty applies.
  • FIU-to-FIU exchange: national FIUs share financial intelligence through the Egmont Group network. A firm reports to its own FIU, which may share abroad.
  • Police cooperation channels, such as Interpol and Europol, for intelligence and urgent matters.
  • Direct contact from foreign police: generally a foreign agency cannot compel a firm abroad. The firm should verify the request and take legal advice. It should consider local privacy and banking-secrecy law and usually direct the agency to the proper channel, such as an MLAT or its own country's FIU or police.

FATF Recommendations 37 to 40 require countries to provide mutual legal assistance and other international cooperation quickly and effectively.

A standard handling process

  1. Log the request with its receipt time and deadline.
  2. Verify its authenticity through official channels.
  3. Get legal review of the authority, scope, deadlines and non-disclosure terms.
  4. Preserve the relevant data at once.
  5. Collect, quality-check and produce securely, sending only what is in scope.
  6. Keep it confidential: restrict knowledge to those who need it, and do not alert the customer.
  7. Review the customer for risk, without filing a SAR merely because a request arrived.
  8. Keep records of everything provided.

Realistic exam scenario

A FinTech receives a FinCEN 314(a) list that includes one of its customers. The analyst wants to send the customer's full transaction history to FinCEN immediately. The correct response is to confirm the match and report it through FinCEN's secure system within 14 days, as the 314(a) process requires. Producing records needs separate legal process. The 314(a) request must stay confidential. The firm should also review the customer and consider whether a SAR is warranted based on its own facts.

Common exam traps

  • Treating a 314(a) request as a subpoena for records.
  • Notifying customers about orders that carry non-disclosure terms.
  • Responding directly to foreign police requests without legal review.
  • Filing a SAR solely because a subpoena arrived, with no independent review.
Test Your Knowledge

What does a FinCEN 314(a) request require of a financial institution?

A

Search the specified records and report any matches to FinCEN within 14 days, confidentially

B

Freeze all accounts of the named subject until the agency responds

C

Immediately produce all records held for the named subject to the requesting agency

D

Notify the subject that they appear on the list so they can respond

Test Your Knowledge

Which UK order requires a firm to provide transaction information on an account for a set period of up to 90 days?

A

Production order

B

Account freezing order

C

Account monitoring order

D

Customer information order

Test Your Knowledge

A foreign police force emails a FinTech directly asking for a customer's account records. What is the most appropriate response?

A

Close the customer's account immediately and keep the records

B

Send the records, because all police requests must be honoured promptly

C

Forward the request to the customer for comment before deciding

D

Verify it, take legal advice, and usually direct the agency to formal channels such as an MLAT

Sections you finish are checked off in the contents.