Blair said this in May too

BBC NEWS | Politics | Blair pledges new 'yob' crackdown:

"Yobbish behaviour in Britain's streets and schools will not be tolerated, Tony Blair said as he set out his priorities for a third term in office."

My emphasis added.

"He put much of the blame on parents, saying he could bring in laws but could not raise people's children for them."

Hmm - schools where children spend 7 hours a day..... are there any effective sanctions for bad behaviour there ? Or can schools just point at parents as classes which start with a few disruptive elements degenerate as a whole?