Earlier quoted context omitted.
And quite a few of those in shady financial dealings. Happily hiding and laundering money for various kleptocrats. It has been noted that, just as the Roman Empire didn't really disappear - it became a church, the British Empire didn't really disappear - it became a bank. The British government likes to make various noises about cleaning this up, but there are too many businesses in the City of London making money of…
There will always be some crime in any financial centre, but I think there's limited evidence that there's proportionally more financial crime going on in London than e.g. NYC or Frankfurt.
Because the UK government is trying very hard to look the other way?