U.S. prosecutors are citing a recent appeals court decision in the Bitcoin Fog case to argue that Tornado Cash activity in Manhattan established proper venue for parts of Roman Storm’s New York prosecution. The move could complicate Storm’s bid to win an acquittal.
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In a filing reported on October 7, 2026, the U.S. Department of Justice invoked a recent appellate ruling from the Bitcoin Fog case to support its position in Roman Storm’s prosecution. Prosecutors say the Bitcoin Fog decision backs their argument that Tornado Cash activity in Manhattan was sufficient to establish venue for parts of Storm’s case in New York. The dispute is central to Storm’s acquittal bid, which challenges whether certain charges or findings can stand in the New York forum. The government’s citation of another crypto-mixing prosecution shows it is trying to use comparable case law to defend the Manhattan venue.
Venue is the legal requirement that a case be heard in a district where the alleged conduct occurred. Storm’s acquittal motion argues that the New York court lacks a proper basis for parts of the case, according to the summary of the DOJ filing. If the court accepts that argument, some charges or portions of the case could be dismissed or reconsidered. Prosecutors counter that Tornado Cash transactions or related activity in Manhattan satisfy the venue requirement. The outcome therefore affects the scope of the case, not just its location.
Bitcoin Fog is a cryptocurrency mixing service that has been the subject of U.S. criminal enforcement. A recent appeals court ruling in that matter addressed legal questions relevant to venue, and DOJ now says its reasoning supports the Manhattan prosecution of Storm. Both cases involve mixing services that prosecutors allege facilitated obscured financial flows. The comparison matters because the court’s reading of the Bitcoin Fog ruling will shape how it evaluates Storm’s venue challenge. A narrow reading of that ruling could leave room for Storm’s acquittal bid, while a broad reading would support prosecutors.
Tornado Cash is a cryptocurrency mixing service that the U.S. Treasury sanctioned in 2022, citing concerns about illicit finance. Roman Storm is a co-founder of Tornado Cash and has been prosecuted in Manhattan federal court in connection with the service. His case is part of a broader U.S. enforcement push targeting crypto privacy tools and unlicensed money transmission. The DOJ’s latest filing shows that prosecutors continue to rely on prior crypto cases as they defend their legal theory.
The DOJ is arguing that a recent appeals court ruling in the Bitcoin Fog case supports its position that Tornado Cash activity in Manhattan established proper venue for parts of Storm’s prosecution. Prosecutors raised the comparison in an effort to defend the New York case against Storm’s acquittal bid. The filing does not resolve the case but adds a new legal authority to the government’s side.
Bitcoin Fog is another crypto mixing service that has been the subject of U.S. enforcement, and its appeals court ruling addressed legal questions that prosecutors say overlap with Storm’s case. The DOJ contends the ruling’s reasoning supports treating Manhattan activity as sufficient for venue. The court will decide how much weight that precedent carries.
Venue is the legal rule that a prosecution should generally occur in the district where the alleged offense took place. If venue is improper, a defendant can seek dismissal or other relief for affected charges. In Storm’s case, the dispute focuses on whether Tornado Cash activity in Manhattan is enough to keep parts of the case in New York.
Prosecutors’ Venue Argument
Why Venue Is Central to the Storm Case
The Bitcoin Fog Comparison
Background on Tornado Cash and Roman Storm
What the Court Will Consider
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The court must now weigh the DOJ’s reliance on the Bitcoin Fog ruling against Storm’s arguments for acquittal. The judge has not yet resolved the dispute, and both sides are expected to continue briefing the venue question. A decision could clarify how broadly courts apply venue rules to decentralized crypto services. For now, the filing signals that prosecutors view the Bitcoin Fog precedent as a useful anchor for their New York case. Based on public news sources.
Tornado Cash is a cryptocurrency mixing service that allows users to obscure the origin of digital assets. The U.S. Treasury sanctioned it in 2022, saying it had been used to facilitate illicit finance. Roman Storm, a co-founder, has been prosecuted in Manhattan federal court in connection with the service.
The court will review the DOJ’s citation of the Bitcoin Fog ruling alongside Storm’s acquittal arguments. Both sides may file additional briefs or responses before the judge rules on the venue dispute. The outcome could affect which parts of the case remain before the New York court.
The case is being watched as part of a broader U.S. enforcement push involving crypto mixing and privacy tools. A ruling on venue could influence how prosecutors and courts handle similar allegations in other districts. However, the immediate effect is limited to the legal arguments in Storm’s case.
