The fact that it's NOT a criminal offense at all and this is a scammer trying to scare you into paying? Anything to do with the Treasury or IRS is CIVIL, not CRIMINAL
The caller left a message on my answering machine saying he was from the Treasury Department and would arrest if we didn't return the call. Funny he never said who the message was for so I knew right away it was a scam. I fear for people who give out their private information. I will report this number.