The standard varies by regime but is generally lower than criminal proof. OFAC requires only ‘reason to believe’ based on credible evidence, while EU courts apply a ‘sufficiently solid factual basis’ test established in cases like Kadi II. The UK applies a ‘reasonable grounds to suspect’ threshold under the Sanctions and Anti-Money Laundering Act 2018. Crucially, the burden lies with the designating authority to justify the listing — not with the designated person to prove innocence. Successful challenges often demonstrate that underlying intelligence is stale, misattributed, or fails to establish the required nexus to sanctionable conduct.
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