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Identification and due diligence

Document copies: when, why and how to keep them secure

Distinguish mandatory copying, justified copying and unnecessary accumulation of identity documents.

Redakce eAML.czLegal position: 2026-10-04Editorial check: 2026-10-04

AML may require or permit a copy. It does not mean every obliged entity must copy every ID in every case. Start with the method, statutory category and specific need.

When copying is mandatory

Section 25(8) requires selected entities to copy an ID during in-person identification under Section 8(2), typically first identification of a customer or new representative. These are credit institutions, payment-service providers or electronic-money issuers and providers of valuables custody or safe-deposit boxes.

Do not extend this specific duty to all accountants and estate agencies. Bank identity under Section 8a does not itself require an ID copy. Relevant copies are, however, part of the Section 11(7) remote method.

Where a covered institution uses a digital identity-document counterpart, section 25(8) requires obtaining the electronic document containing its data. A screen photograph or transcription of a few fields does not automatically meet this special duty; use the appropriate document-transfer function.

Permission needs justification

Section 8(11) permits copies or extracts for AML purposes without customer consent; Section 9(8) addresses due diligence documents similarly. Permission is not a duty to create the largest possible collection. Explain what the copy establishes, whether a record or extract suffices and how it addresses risk.

GDPR still applies: purpose, necessary scope, security and proper retention matter. Do not substitute blanket consent for statutory AML processing as if withdrawal would erase the legal duty.

Scope depends on the method

Where a method requires copying a relevant document part, do not arbitrarily remove mandatory data or security features. Copy relevant pages; a passport’s entire travel history is generally unnecessary for identification. Assess masking and editing against the particular legal purpose.

Distinguish identity documents, supporting documents and source-of-funds evidence. They have different functions. Identification documents should not become generally accessible CRM attachments.

Delivery and retention are part of the task

Use a protected channel and access limited to necessary roles. Avoid personal staff phones and open email folders. Check tool export and availability periods; the statutory archive cannot depend on subscription continuation.

Retention follows applicable Section 16 provisions, including special categories and starting points. Keep justified versions and changes, then ensure lawful deletion when the purpose and applicable period end rather than indefinite “just in case” storage.

Practical steps

  1. Determine whether law or the method requires the copy.
  2. Otherwise justify copying and its scope.
  3. Use a protected channel and restricted access.
  4. Include it in your own archive and retention map.

Illustrative scenario

For in-person identification, an accountant records necessary data and individually justifies copying a relevant ID part if needed for AML.

When the situation differs

After BankID, an agency automatically demands complete passports including visas and stores them in a shared marketing folder.

What to document

  • Copying reason, statutory method and scope.
  • Access roles and secure delivery.
  • Retention rule, export and deletion where applicable.

Common pitfalls

  • Treating permission as a universal obligation.
  • Copying to private devices without controlled removal.

Frequently asked questions

Can withdrawing consent force immediate deletion of an AML copy?

Statutory processing generally does not depend on consent. Assess the legal basis and retention; withdrawal does not itself remove them.

Is masking every unnecessary detail always correct?

Not automatically. Respect the method’s requirements for mandatory copies; minimisation must not destroy required evidence.

Put this guidance into practice

Choose a record for the step you are working on. Adapt it to your profession and actual case.

Complete client information online

Where to go next

Sources and legal references

  1. Zákon č. 253/2008 Sb. — aktuální znění e-Sbírky ↗
    § 8 odst. 11, § 9 odst. 8, § 10 odst. 4, § 11 odst. 7, § 16, § 25 odst. 8 · accessed 2026-10-04
  2. GDPR ↗
    čl. 5, 6, 32 · accessed 2026-10-04

Editorial work and source checks are not independent legal approval of your particular process. Compare the conditions and exceptions with your own circumstances.