I should hope there's more to that case than meets the eye. There should be reasonable belief that an offence has been committed for a warrant. I don't think receiving a large sum from an exchange would be sufficient for money laundering charges without some kind of incriminating evidence (IANAL of course).
I didn't have police at the door but I did have the bank account closed, funds frozen without explanation happen to me. It really really sucked
edit: It was also Clydesdale bank
In 2013 the bank made an 'error' on my wire xfer to Sweden (they said 99,999.99 lol..it was 10,131.80 and I had proof) but jumping the gun
because in 2013 bitcoin was 'evil' (had a plumber come to do an estimate on bsmt also in 2013..he saw miners, I told him it was BTC miners,
he said and I quote "that's used for drugs right" ..never saw him again! lol)
So anyway, cleared it up with SEC guy on voice phone, showed the error, the banker went after me anyway about taxes, tossed down
revised taxes and told him to fuck himself...at that point, the SEC guy on voice phone said 'why am I here?' and hung up!
So the problem is, from what I can tell, Utilities like the electric company CAN raid your house on say, excessive use of electric and
get all your equipment..the catch is in that case it takes months to get back...a few guys had that nightmare also in 2013/2014.
I called my electric company saying I had 'server equipment' in the basement, and did they want to check it out (when they asked
on phone) as a result got winter electric rates because the lady, on my telling her how hot it got in bsmt, said 'oh, so is the majority
of your heat in winter electric? I looked at 'space heater' btc stuff and said 'yes, it is...so every winter get 2c knocked off electric....
anyway, the server equipment and offer to look, in my case worked...I assume if they ever would have sent an inspector it would have
been a laugh and 'nice try' and I woulda shrugged....but never went that far.
dumb and lucky sometimes works..but yeah, it can happen...not so much now...but back in the day it was common (utilities would
nark on folk ..thinking it was heat lamps for weed)
later
brad