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Garry Man, a former firefighter from Faversham could be sent to Portugal 'within days'.
The 52 year old has always claimed his trial at the time was unfair.
He was arrested, tried and convicted within 48 hours and his lawyers say he was only allowed to spend five minutes with them before a trial. The also say he couldn't understand the proceedings and did not know what charge he faced until after he was convicted.
Last month the European Court of Human Rights rejected his application to halt his extradition however, an emergency High Court injunction in the UK was obtained to block his removal and give him time to make today's fresh application for permission to seek judicial review.
His lawyers argued at the High Court in London today that there was new evidence from the Foreign Office to support Mann's case against extradition, and allowing it to proceed would violate his human rights.
But Lord Justice Laws and Mr Justice Irwin ruled his application for judicial review ``unarguable''.
Mr Mann said outside court that he was ``devastated'' by the decision.
Jago Russell, chief executive of Fair Trials International, which has backed Mann's battle, said: ``It really is the end of the road.''
Mr Russell said he expected Mann's removal to take place ``within a matter of days - probably by the middle of next week''