It’s not exactly some kind of nefarious secret scheme. The IRS puts out a 50 page report each year on what the Criminal Investigations department is for: https

It’s not exactly some kind of nefarious secret scheme. The IRS puts out a 50 page report each year on what the Criminal Investigations department is for: https://www.irs.gov/pub/irs-pdf/p3583.pdf https://www.irs.gov/pub/irs-pdf/p3583.pdf It’s for pretty much what you’d expect: tax fraud, corruption, money laundering, and so on.