It will be anti-money laundering. Hes either buying or selling BTC to drug dealers / organized crime.
AML is the charge. He 's a pretty careful guy, though. Maybe it was a one-off bad trade like that. But he's stating now it's a DoHS play for relevance in the face of btc
@NODEfather 3h3 hours ago
https://twitter.com/NODEfather/status/964908384628572160Everyone asking me about why I was arrested for selling Bitcoin for Cash. Homeland Security came to my home to handcuff me. This is their plan to regulate BTC via legislation from a judge. @Potus has lost control of DHS/ICE. DHS is not needed when BTC wins
https://twitter.com/NODEfather/with_replies worth a read
He can make up any BS story he likes. AML is taken really seriously. Anyone doing Local Bitcoin is asking for trouble. If you are taking large quantities of fiat in a brown paper bag in an alley, maybe you should stop and think for a second.