U.S. IRS Criminal Investigation (IRS-CI) has counted down its top 10 cases for calendar year 2021, including the agency's most prominent and high-profile cases. --- IRS-CI counts down the top 10 cases of 2021 Cases include tax evasion, Ponzi schemes, COVID fraud, cyber crimes IR-2022-04, January 7, 2022 WASHINGTON — Internal Revenue Service Criminal Investigation (IRS-CI) began counting down the top 10 cases for calendar year 2021 on its Twitter account on January 3. These cases include the agency's most prominent and high-profile investigations of 2021. "The investigative work of 2021 has all the makings of a made for TV...