Michael Brown pictured in December 2007: (Pic Paul Grover/ Rex Features)
A judge has issued an arrest warrant for a wealthy businessman whose company donated more than £2 million to the Liberal Democrats.
Michael Brown, 42, is due to stand trial in September accused of a number of fraud and money laundering offences.
But Judge Geoffrey Rivlin at Southwark Crown Court issued an arrest warrant after he breached his bail conditions.
A City of London Police spokesman said: "Efforts are being made to contact him."
A further hearing on the case has been scheduled for 11 August.