The government is asking bankers and lawyers to provide feelgood stories about how they blocked dirty money from entering the UK, as ministers try to prove the UK’s money-laundering controls are working.

The Treasury’s call for evidence is meant to illustrate that the UK has upped its game when it comes to preventing financial crime, particularly since its last dismal assessment by the Financial Action Task Force (FATF) global crime watchdog in 2018, which fuelled allegations that London had become a hub for “dirty money”.