The High Court has refused to extradite a Co Louth man wanted in Lithuania on terrorism and firearms charges.
Brendan McGuigan, 33, of Knocknagoran, Omeath, is being linked to a Real IRA plot to buy weapons and explosives in Lithuania.
Mr McGuigan's extradition was sought by the Lithuanian authorities.
They allege that he and others went to Lithuania in August 2007 and attempted to buy firearms, ammunition and explosive devices there.
Mr Justice John Edwards ruled that he was not going to surrender Mr McGuigan due to concerns about prison conditions in Lithuania.
Another Co Louth man, Michael Campbell, is serving 12 years in a Lithuanian jail for his involvement in weapons smuggling for the Real IRA after he was arrested in 2008.
The arrest followed an MI5 sting in which he was filmed test firing weapons.