No bitcoin, but the tax collector did do “quasi” money laundering.
You see, all the money paid to the tax collector (tax bills, fees, liens, penalties, etc) were all deposited into a county run account first, for 24 hours. We had an investment specialist at the office who invested that money in stocks/mutual fund/etc. After 24 hours, the money then went to the state. So there was always money being moved into and out of this account on a daily basis (the treasurer handled all money going into the county, not just taxes) and the county profited from it.
Some side stories…
Our elected official (treasurer/tax collector) would hold all of the property tax bill money hostage (we’re required to submit the funds to the state on a certain day of the year) and refuse to submit the tax roll to the state until he had his office budget approved.
The “investment specialist” I mentioned above was a swarmy fellow who always wore expensive suits and would pick up on women dropping his business card in a “look at me I’m rich” sort of way…