According to the investigations, she is linked to a wider fraudulent scheme that originated from China. And it involves more than 61,000 Bitcoin. And spending proceeds of crime money makes her accomplice in it.
So basically she's a front for the operation and they've chosen UK as the place to clean their money through this means, is that correct? 61k bitcoin is just a really huge number, I do feel like there's more to this than just a syndicate and I think that there's a Chinese government involvement here because there's no way that they're letting this 2 billions pounds worth of bitcoin get laundered unnoticed, I think that it's the Chinese government that's got this operation when you try and dig through it.
I think, she has some assets she sold some years ago that gave her some huge amount of capital to invest in Bitcoin, that made her to achieved the 2b worth of Bitcoin. The mistakes she made is to released all her Bitcoin to acquired those assets in her country when she knew that Bitcoin is illegal in that particular country, because the amount of funds she use to purchased all those assets at once, it will make the government to suspect her for money laundry. I don't think, the six years in prison will make her to forget her mistakes she made to released all her Bitcoin to loss all her life savings to government, because it will be very hard for her lawyer to win such case for her favourite.
If you've read what @Davidvictorson posted, you'd know that she's already a part of a money laundering scheme that aims to clean those bitcoins and avoid as much tax as possible through various ways of cleaning those bitcoins, that's why she got those properties to make it look like the money came from real estate or something.