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National Crime Agency officer jailed for stealing £4.4m worth of seized bitcoin

16/7/2025

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Paul Chowles, 42, stole the proceeds of an online illegal drugs market and laundered the money on the dark web
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  • Posted by Peter Oakes
Definitely a great AML typology for MLROs' training kit and of course a useful Know Your Employee one as well.

I would love to hear from current law enforcement officers and the many ex law enforcement officers in the network on their thoughts on this case.

A National Crime Agency (NCA) officer has been jailed for stealing £4.4m worth of bitcoin seized during a joint operation with the US Federal Bureau of Investigation (FBI), after the criminal he was investigating told the police it was missing.

Paul Chowles thought he had got away with the crime for five years, prosecutors said, after laundering the money on the dark web and spending £613,000, mostly on day-to-day expenses.

The 42-year-old had been working as an investigator on the case of Thomas White from Liverpool, who ran an online black market for illegal drugs, known as Silk Road 2.0, launched a month after a website of the same name was shut down in 2013 by the FBI.

It was White, while under investigation, who noticed someone had taken 50 bitcoin of the 97 he had, and told police it had to be someone inside the NCA because they had the private keys for his cryptocurrency wallet.

Merseyside police, which had responsibility for managing White in the local area following his release on licence in early 2022, discussed the theft with the NCA, in meetings that Chowles attended.

During the investigation, officers discovered Chowles had stolen the money between 6 and 7 May 2017, two years after the White investigation was over, and in the following five years had been spending it in supermarkets and hardware stores and on fuel and meals, with investigators uncovering hundreds of debit card transactions.

What are some of the lessons from this case?

Generally, the case of the NCA officer jailed for stealing seized bitcoin offers sobering lessons for Money Laundering Reporting Officers (MLROs) and law enforcement agencies. It underscores the critical threat posed by insider abuse and the importance of knowing your employees—especially those entrusted with sensitive financial or digital assets.

More specifically, here are 5 Key Lessons for MLROs and Law Enforcement.

Key Lessons for MLROs and Law Enforcement
​

1. Insider Threats Are Real and Costly
Even trusted officers can exploit access for personal gain.
Chowles used his position to divert seized Bitcoin, bypassing internal controls.
Insider threats are harder to detect than external ones because they exploit legitimate access.

2. Know Your Employee (KYE) Is as Crucial as KYC
Background checks, ongoing vetting, and behavioral monitoring are essential.
Chowles had no prior criminal record, but his misuse of crypto tools went unnoticed for years.
Agencies must implement continuous risk assessments for staff in sensitive roles.

3. Weak Internal Controls Enable Exploitation
Chowles used mixing services to obscure transactions—a red flag for MLROs.
Lack of multi-signature wallets, audit trails, and real-time monitoring allowed the theft to go undetected.
Agencies must adopt blockchain analytics tools and segregation of duties.

4. Training in Crypto Forensics Is Vital
Law enforcement and MLROs must understand crypto mechanics, including wallets, mixers, and blockchain tracing.
Chowles exploited gaps in institutional knowledge to cover his tracks.
Regular training and collaboration with tech experts can close these gaps.

5. Reputation and Public Trust Are at Stake
This case damages the credibility of the NCA and raises doubts about asset integrity.
MLROs must ensure that seized assets are handled transparently and securely.
Agencies should publish audit results and enforce accountability to rebuild trust.
What are some of the strategic takeaways from this case?
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Sources:
  • https://www.linkedin.com/posts/peteroakes_lawenforcement-bitcoin-moneylaundering-activity-7351707428448522240-m1q6
  • https://moneylaundering.com.au
  • https://www.theguardian.com/uk-news/2025/jul/16/national-agency-officer-jailed-for-stealing-44m-worth-of-seized-bitcoin

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