Home Secretary Theresa May's plans for "Asbos for terrorists" has been criticised by the former shadow home secretary and fellow Conservative David Davis.
Writing in the Mail on Sunday he said: "Asbos for terrorists? It is hard to imagine the ISIS killers quaking in their boots."
He also joined the calls to strip British jihadists fighting in Iraq and Syria of their citizenship, adding the government's response to the crisis in Iraq had been 'tentative, uncertain, almost limp" and he suggested the men heading overseas to fight were committing treason.
He said: "Since these young men are in effect swearing allegiance to a hostile state, they should all forfeit their British citizenship - not just those who are dual nationals."
He added: "IS is claiming to be a state. They can issue these young men with Islamic State passports if they so wish. It is not our problem that they would have trouble getting into any civilised country with them."
A British family have told ITV News of their devastation after discovering a close relative is fighting with the Islamic State in Iraq.
A French journalist who was held hostage with James Foley in Syria has told ITV News it was "devastating" to see his murder.