This bill, known as the "Dark Web Interdiction Act of 2025," addresses the illicit distribution of controlled substances, especially opioids, via the dark web. It recognizes the dark web's anonymity as a significant challenge for law enforcement in combating drug trafficking and the substance abuse crisis. The legislation establishes a new federal offense, making it unlawful to knowingly or intentionally deliver, distribute, or dispense a controlled substance by means of the dark web, or to aid and abet such activities, with a recommended 2-level increase in sentencing guidelines. To combat these activities, the bill establishes the Joint Criminal Opioid and Darknet Enforcement Task Force (J-CODE) within the Federal Bureau of Investigation. This interagency program, headed by a Senate-confirmed Director, aims to detect, disrupt, and dismantle illicit marketplaces on the dark web. Its components include representatives from key agencies such as the FBI, DEA, HSI, and the Department of Justice, among others. The task force's duties involve proactive and reactive investigations , forensic and cyberforensic examinations, and providing specialized training and assistance to law enforcement and prosecutors. It will develop best practices for evidence collection and sharing, foster multi-jurisdictional partnerships, and create novel investigative approaches for emerging technologies. J-CODE is also tasked with enhancing international collaboration and providing guidance on recognizing dark web evidence and identifying illicit distribution patterns. The task force must submit annual reports on its activities and effectiveness, and its authority will sunset five years after enactment. Additionally, the bill mandates a report from the Attorney General, in consultation with Treasury and Homeland Security, on the use of virtual currencies in dark web opioid distribution. This report will summarize how virtual currencies finance these transactions, assess investigative capacity, and recommend legislative actions. Congress also expresses a sense that the definition of "dark web" in the Controlled Substances Act should be evaluated and updated every five years.