The trial of Roman Storm, co-founder of the cryptocurrency mixing protocol Tornado Cash, is drawing to a close. According to Assistant U.S. Attorney Thane Rehn of the Southern District of New York, the prosecution expects to complete its presentation of evidence by the end of next week. The defense will then begin calling witnesses, with the entire trial anticipated to last 3 to 4 weeks and conclude by July 25, 2026.
Background and Legal Stakes
Tornado Cash is a decentralized privacy protocol that uses smart contracts to break the on-chain link between sender and receiver addresses, providing anonymity for cryptocurrency transactions. However, the U.S. Department of Justice alleges the platform facilitated money laundering and sanctions evasion. In August 2022, the Treasury's Office of Foreign Assets Control (OFAC) sanctioned Tornado Cash; months later, Storm and fellow co-founder Roman Semenov were indicted on charges of conspiracy to commit money laundering, violating sanctions, and operating an unlicensed money transmitting business.
The current trial focuses on Storm's individual criminal liability. Prosecutors aim to prove he knowingly maintained and developed software that enabled illicit activity. Storm's defense argues that his code is protected speech under the First Amendment and that he lacked direct control over how users deployed the protocol. This case touches upon a pivotal legal question in decentralized finance (DeFi): whether smart contract developers can be held liable for the unlawful actions of third-party users.
Trial Progress and Defendant's Decision
Prosecutor Rehn stated that the government will rest its case within the coming week. Storm's legal team will then call witnesses, including technical experts and privacy advocates, to argue that Tornado Cash is a neutral tool. Storm has not yet decided whether to testify in his own defense. If he takes the stand, he could face intense cross-examination regarding his intent. Legal analysts note that this decision could significantly influence the jury's verdict.
Co-defendant Roman Semenov remains at large and is not part of this trial. As a result, Storm's case is viewed as a landmark test of how U.S. regulators will treat decentralized protocols.
Market and Industry Reactions
Following news of the trial's timeline, Tornado Cash's native token TORN edged down approximately 0.15% in 24 hours, reflecting cautious market sentiment. A conviction could trigger a chilling effect on other privacy-focused crypto projects, forcing developers to reassess compliance risks. Conversely, an acquittal might spur innovation in confidential DeFi applications.
Crypto legal experts say the outcome will help define the boundary between free expression in code and liability for aiding criminal activity, offering guidance for regulatory frameworks worldwide. As the trial enters its final phase, the cryptocurrency community watches closely for the jury's final decision.