A 66-year-old man has been before the High Court in relation to an extradition warrant for offences relating to a 1972 bombing in Enniskillen in which two members of the UDR were killed.
The court heard John Downey was arrested yesterday at his home in Ards, Creeslough, Co Donegal, under a European Arrest Warrant.
Detective Sergeant Jim Kirwan gave evidence of arresting Mr Downey.
He is wanted by the PSNI in the North for questioning in connection with two counts of murder and one count of aiding and abetting an explosion.
In response to his arrest, the court heard Mr Downey said: "I'd say it was the DUP made the decision, not the DPP."
Sgt Kirwan said Mr Downey has surrendered his passport and had fully co-operated with gardaí.
Mr Downey's lawyers said he would be contesting the application to extradite him to the north.
Senior Counsel Garnet Orange said Mr Downey had medical conditions and had had a heart pacemaker fitted and was anxious to have an early date set for a bail hearing.
Ms Justice Aileen Donnelly said she would hear the full extradition application on 23 November.
She remanded Mr Downey in custody and said she would hear a bail application on Thursday.
Mr Downey's trial on charges linked to the 1982 Hyde Park bombing in London in which four soldiers were killed collapsed in 2014.
He had been mistakenly sent a government letter saying he was not wanted for questioning by the police when there was actually an outstanding warrant against him.
Mr Downey has denied any involvement in the Hyde Park attack.
Sinn Féin TDs Sean Crowe, Dessie Ellis, Martin Ferris and Pearse Doherty were in the high Court this afternoon for the brief hearing.
Speaking outside the Courts of Criminal Justice, Mr Doherty said the arrest of Mr Downey was wrong.
He said Mr Downey was a supporter of the peace process and had been for many decades.
"He has been living openly with his family in Donegal for many decades. It is a matter of public record that he has been given assurances by the British authorities that he was not wanted for any offences in relation to the north or elsewhere and this was tested in the British courts a number of years ago when the British authorities were found guilty of a breach of process."
He added: "In my view this arrest was wrong, it should not have happened and he should be returned to his family where he has been living for the last number of decades."
