"If we are to truly act with the robust moral authority that is required, we must get our own house in order. London has become the destination of choice for the crooks and thieves who run Russia" - Mr Stephen Kinnock MP (Aberavon, Labour) in the House of Commons 23 February 2022
As shown by a Foreign Affairs Committee report published in May 2018 (pdf), serious concern has existed for a considerable time about possible Russian influence in the UK including potentially undue influence over UK government activity.
Further concern is how certain wealthy individuals have used the legal system to deter criticism of their activities -
Putin has used British rich man’s law to avoid scrutiny, at a crippling cost to us all | Nick Cohen | The Guardian 26 February
Cohen goes so far as to say - "As Russian tanks