Former Workers' Party president Sean Garland, whose extradition is being sought by the US for alleged involvement in counterfeiting, has been remanded in custody.
At the High Court, Mr Justice Michael Peart remanded Sean Garland in custody to Cloverhill Prison. He will appear before the court next Wednesday.
The judge was told that an application for bail may be made before then.
US authorities claim that Mr Garland, with an address in Navan, Co Meath, conspired with others as part of a counterfeiting operation involving almost perfect copies of US dollars.
Yesterday the court heard from Mr Garland's solicitor, Colm MacGeehan, who said that his client suffers from a serious medical problem.
He said that it is hoped an application for bail could be made by the weekend. The Judge adjourned the case and said that notice of any application for bail would have to be given to the State at least two days in advance.
Sean Garland was elected as President of The Workers' Party in 2006. He retired from the presidency in May of last year, but remains a member of the party's Central Executive Committee and is its National Treasurer.
He took part in the IRA border campaign during the 1950s and was interned in the Curragh in 1959. He was also jailed for four years in Northern Ireland during the 1960s.
During the 1969/70 IRA split, he was a key figure in Official Sinn Féin, which became the Workers Party in the 1980s.