A long-awaited report into Russian state interference into the UK’s affairs has honed-in on London’s private wealth sector as part of the problem, making multiple references to the “professional enablers” who helped rich Russians gain unscrutinised influence.

Released this morning (though authored some 18 months ago), the Intelligence and Security Committee of Parliament’s Russia report describes London as a “laundromat” and said few “if any” questions were asked a...