According to Cointelegraph, on September 12, a petition was launched on Change.org to oppose the use of Chainalysis forensic services by US federal agencies. The petition questions the accuracy of Chainalysis and raises legal issues related to the activities of blockchain data analysis companies. The petition states that Chainalysis' findings do not meet the Daubert standard for expert testimony in US courts established by the US Supreme Court in 1933, its error rate is unknown, it has not been peer-reviewed, and it may use flawed methods. The petition lists seven US federal agencies that use Chainalysis services.