The National Crime Agency can seize £5.6m from a sophisticated global money laundering scheme involving UK companies, a court has ruled.
Financial investigators can take the money from the London-based family of Javanshir Feyziyev, an MP in the Azerbaijan parliament.
The NCA had hoped to seize over £15m but hailed Monday’s ruling a success.
It comes as campaigners criticise the government for delaying new laws to target allegedly dirty money in the UK.
The investigation was launched after the exposure of a corruption scandal dubbed the Azerbaijani laundromat.
The NCA pored over thousands of leaked documents from Den Danske Bank, in Estonia, obtained by the Organised Crime and Corruption Reporting Project and other media organisations in 2017.