Security at Leinster House may have to be reviewed following protests yesterday.
Gardai say they had to intervene in a number of public order incidents and 13 people were arrested .
Some demonstrators brought a gallows with pictures of several politicians on it and heckled TDs.
"Yesterday's event were pretty dreadful, they were profoundly anti-democratic in fact," she said.
"I would defend the right to protest; I've protested myself outside Leinster House.
"I think it's very important that people would have a right to protest, a right to freedom of assembly outside our Parliament.
"What we saw yesterday was profoundly anti-democratic.
"The individuals involved, and they were a relatively small number, engaged in violent and threatening tactics, they blocked and obstructed members of the Oireachtas and staff and visitors from entering Leinster House."