How do I report crypto fraud to the police in the UK?

Report to Action Fraud at actionfraud.police.uk or 0300 123 2040. Include every wallet address, transaction hash, platform name, communication channel, and loss amount. You'll receive an NFRC reference number — keep it; you'll need it for exchanges and any civil action.

Action Fraud forwards cases to the NFIB (National Fraud Intelligence Bureau), which decides whether to refer to a regional police force. Most individual cases don't get investigated due to volume, but the reference number is essential paperwork. Separately, if your loss is over £100k or there's an identifiable suspect in the UK, you can approach your regional police's economic crime unit directly with a written summary.