Barcenas, who served for one year as the party's treasurer and 19 as its assistant treasurer, resigned in 2009 after he was first named in a National Court probe into alleged irregular financing practices by the party.
His lawyer, Alfonso Trallero, has denied the Swiss account money was illegally obtained or linked to the Popular Party.
Traillero raised a separate storm when he claimed that Barcenas took advantage of a recent government amnesty for undeclared assets â¿¿ something which has already infuriated many Spaniards â¿¿ to "regularize" roughly half of the Swiss account money. Finance Minister Cristobal Montoro has agreed to address Parliament on the issue Wednesday.
"I think some austerity is needed, but obviously political parties, which operate on public money, should be subject to tougher control by the state. Things like this should not be allowed to happen," said retiree Alberto Ruiz del Portal, 64._____ Jorge Sainz in Madrid and Barry Hatton in Lisbon, Portugal contributed to this report.