DOJ invokes Bitcoin Fog ruling in potential blow to Roman Storm acquittal bid

The Venue Trap

Legal maneuvers rarely look like a fair fight, but the latest move from the Department of Justice against Tornado Cash co-founder Roman Storm feels particularly calculated. Prosecutors are now leveraging a recent appeals court decision involving Bitcoin Fog to justify keeping Storm’s trial in New York. If you are building in the decentralized space, this matters because it changes the definition of where your 'business' actually happens.

The DOJ’s argument is simple and terrifying: if a service is used by someone in Manhattan, the government can drag the creator of that service into a Manhattan courtroom. It does not matter if the developer never stepped foot in the city or if the protocol is a set of autonomous smart contracts. The Bitcoin Fog ruling basically says that as long as the infrastructure facilitates a crime involving someone in a specific jurisdiction, that jurisdiction owns the case. It is a land grab for legal authority over the internet.

Building Without a Map

For those of us in the trenches building tools, this is the ultimate 'moving the goalposts' scenario. Roman Storm’s defense team has been fighting to get certain charges dismissed or at least moved, arguing that the alleged actions did not take place in New York. The government’s rebuttal, bolstered by the Bitcoin Fog precedent, suggests that the physical location of the server or the founder is irrelevant. They are looking at the destination of the funds.

This creates a massive liability for any developer. If you launch a permissionless protocol, you have no way to prevent a resident of New York, London, or Tokyo from interacting with it. According to this logic, you are now subject to the local laws and prosecutorial whims of every single one of those places. It turns the entire world into a legal minefield for anyone writing open-source code.

The Ghost of Bitcoin Fog

The Bitcoin Fog case involved a mixer that operated for a decade. The recent ruling there solidified the idea that 'venue' is established by the movement of money through a district. By invoking this, the DOJ is signaling that they do not view Tornado Cash as a neutral tool, but as a service provider responsible for the path its users take. They are trying to bridge the gap between a centralized service like Bitcoin Fog and a decentralized set of smart contracts like Tornado Cash.

This is where the skepticism kicks in. The government is essentially trying to have it both ways. They want to treat decentralized protocols as if they have the same oversight capabilities as a bank, while ignoring the technical reality that these systems are designed to be unstoppable. If the court accepts this logic, it means the government has successfully redefined 'operating a business' to include 'writing code that others use.'

Why Builders Should Be Worried

Most founders I talk to are just trying to solve privacy problems or improve efficiency. They are not looking to facilitate money laundering. However, the DOJ’s strategy suggests that intent matters less than the technical capability of the tool. If the tool can be used for bad, and a New Yorker uses it for bad, you are now a New York defendant.

• Jurisdictional Creep: You no longer choose your jurisdiction; your users choose it for you.
• Liability by Default: Open-source contributions could be reframed as providing a service to illicit actors.
• Precedent Risk: The Bitcoin Fog ruling is being used as a wedge to widen the scope of who the government can prosecute.

We are seeing the slow erosion of the 'neutral tool' defense. In the past, if you built a hammer and someone used it to break a window, the hammer manufacturer wasn't sued. Now, the government is arguing that because the hammer was made of high-grade steel and sold in a hardware store where a thief shops, the manufacturer is part of the conspiracy.

The Founder Perspective

If you are a founder, this is the time to be incredibly diligent about your legal structure and how you market your tools. The DOJ is clearly looking for wins that expand their reach. They are using Roman Storm as a test case to see how far they can stretch the definition of a money transmitter. If they win on the venue argument, it sets a floor for future prosecutions that will be very hard to climb above.

I have always been a fan of building in public, but this legal environment makes that a high-risk strategy. We are entering an era where privacy-preserving tech is being treated as inherently suspicious. If you are building in this space, you have to realize that the code you write today could be used as evidence against you tomorrow in a city you have never visited.

The government is not just prosecuting a person; they are attempting to regulate the architecture of the internet by threatening the architects.

The takeaway here is not to stop building, but to build with a clear understanding of the risks. The DOJ is playing a long game, using individual cases like Bitcoin Fog to build a wall of precedents that will eventually box in the entire crypto industry. Roman Storm’s fight is about more than just one mixer; it is about whether developers have the right to create tools without being held responsible for the entire world’s behavior.

Read the original at Cointelegraph →