[footfootfoot]

I've heard that the smart pot growers buy tax stamps (like for ciggies) to cover their crop. I seem to remember something about how the feds took down some gangster during prohibition. It was too tough to prove the booze activity so they got him on tax evasion. I think that tactic still works.

Bottom line: don't fuck with the IRS.

An intersesting footnote: Leona Helmsley could have hired an army of mercenaries and sent them after the taxman for a lot less money than she paid in fines. Some people don't think out of the box.