Sanctions Evasion Reference

Wilful blindness

Deliberately avoiding knowledge of a fact that would create liability, treated in enforcement practice as equivalent to knowing it.

also known as

red flag knowledge, deliberate ignorance

reviewed

2026-08-20

Sanctions and export control regimes attach consequences to knowledge, including the “knowledge” a party would have had but for a deliberate decision not to ask. Declining to verify an end user, or accepting an explanation that the surrounding facts contradict, does not create a defence.

Enforcement narratives typically establish it through the trail of unanswered questions: the internal email raising a concern, the check that was started and abandoned, the escalation that was closed without a reason.

Where this term is used

  • What is dual-use re-export diversion? — Buying controlled civil-use goods lawfully in an open market and re-exporting them to a restricted end user, exploiting the fact that the item itself looks entirely ordinary.
  • What is end-user certificate fraud? — Supplying a false statement of who will use controlled goods and for what, so that a licence is granted or a sale proceeds on a representation the exporter cannot verify.
  • What is a professional enabler? — A lawyer, accountant, formation agent or broker whose services are what makes a concealment structure work, and whose repeated involvement across unconnected clients is itself the evidence.

Related terms

  • Facilitation — Approving, financing, guaranteeing, brokering or otherwise assisting a transaction by a foreign person that the assisting party could not lawfully perform itself.
  • Red-flag indicator — A published, attributable observation that a transaction or relationship warrants further enquiry, drawn from patterns seen in past cases.
  • Enhanced due diligence — Additional scrutiny applied where risk is assessed as higher, including deeper enquiry into source of funds, ownership and the purpose of specific transactions.

Sources

  1. Don't Let This Happen to You: Actual Investigations of Export Control and Antiboycott Violations. U.S. Bureau of Industry and Security, Office of Export Enforcement, 2024.
  2. Civil Penalties and Enforcement Information. U.S. Department of the Treasury, Office of Foreign Assets Control, 2026.

All glossary terms