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Former top lawyer says anti-terror laws 'may not be legal'

Former Attorney General Dominic Grieve has voiced concerns about the legality of new anti-terror measures, while Labour has accused the Government of being "unclear" in their plans.

The comments come after David Cameron unveiled a series of new measures including giving police the powers to seize passports at UK borders of British citizens they suspect could be travelling abroad to fight with terror groups.

The move follows the announcement on Friday that the UK's terror threat has been upgraded from 'substantial' to 'severe', with the Home Secretary saying an attempted attack was now "highly likely".

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PM: Attempt to create extremist caliphate threat to UK

David Cameron said the Islamic State's actions in Iraq and Syria pose a threat to the UK's security.

The Prime Minister was speaking after the UK's terror threat level was raised from substantial to severe.

David Cameron speaking to the media. Credit: PA Wire

"The ambition to create an extremist caliphate in the heart of Iraq and Syria is a threat to our own security here in the UK," David Cameron said.

Mr Cameron warned that the UK could be facing a "terrorist state on the shores of the Mediterranean" if the Islamic State continued to expand its territory.

"The root cause of this threat to our security is quite clear. It is a poisonous ideology of Islamist extremism that is condemned by all faiths and faith leaders."

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