I'am not sure what UK laws they have to abide by but no-one seems to bank in the UK .
I cannot understand why since all the global banksters have a presence in London,and they are all self regulating.
Does anyone know why exchanges in bitcoin are afraid to bank in the U.K.?
Out of the ones I have mentioned in the original post, Bit121 are UK based, using a Payment Service Provider to circumnavigate using a UK bank, so Pacnet, (the PSP) deal with Barclays, their UK bank.
See this article for more info on that particular example: http://www.coindesk.com/barclays-bank-uk-bitcoin-exchange-bit121/
I have personally used this service and can confirm you deposit your £ into a UK bank account. But it seems, they (or Barclays) are sidestepping something here. It does seem strange that London and the UK are a beacon of banking, yet they are so restrictive and stringent with its laws. Well, actually, I think that statement may have just answered itself.