On 10 May 2022, the U.S. IRS issued a media release on the hosting of a "Challenge" event by the Joint Chiefs of Global Tax Enforcement (J5), which brought together investigators, cryptocurrency experts, and data scientists in a coordinated push to track down individuals and organizations perpetrating tax crimes around the world. This year's event focused on non-fungible tokens (NFTs) and decentralized exchanges (DEX). The J5 is comprised of the Australian Taxation Office (ATO), the Canada Revenue Agency (CRA), the Dutch Fiscal Information and Investigation Service (FIOD), HM Revenue & Customs (HMRC), and the Internal Revenue Service Criminal Investigation (IRS-CI)....