The parents of out-of-control teenagers should be forced to pay on-the-spot fines, Fine Gael claimed tonight.
The party said the fines, which would range between €50 and €100, would be part of a series of measures to tackle anti-social behaviour.
Justice spokesman Jim O'Keefe said it would made parents accept responsibility for their children's behaviour.
"I was told that last St Patrick's Day the Gardai had to ring the parents of 150 teenagers who were drunk out of their mind and had to be brought home for their own protection.
My approach will be that the next time they have to do that, they'll tell the parents to bring in €100 as well."
He added that if parents could not afford to pay the fines immediately, they could do so in instalments, and if they refused, they would be deducted from wage packets or social welfare payments instead.
People over 18 would be handed the on-the-spot fines directly.
Fine Gael is proposing 30 measures as part of its anti-social behaviour campaign, including a ban on the selling of spray paints to under 18s, a ban on the sale alcopops in off-licences and a doubling of the fines for supplying alcohol to underage drinkers - from €1,500 to €3,000.
It is also in favour of giving the courts the power to impose curfew orders on people convicted of anti-social behaviour and to ban groups of people from congregating in areas as park corners and under bridges.
There will be a new website, safestreets.ie, and a national billboard campaign with photographs of burnt out cars, drunken street fights and underage drinking. There will be a national series of meetings to debate the proposals.