What Are The New Anti

David Cameron has announced new powers to prevent those who have fought for terror groups from returning to the UK.

Here are the key details of the new legislation, which will be debated in Parliament later this month.

:: Passports of UK nationals suspected of travelling abroad to fight for terror groups, including Islamic State, will be cancelled or confiscated.

:: Border guards and airport police to be given powers to seize the passports from individuals suspected of planning to travel abroad for terrorism purposes.

:: Suspected fighters coming back from Syria and Iraq would be blocked from returning to the UK for at least two years, unless they comply with strict measures.

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:: The measures would include being escorted back to Britain, prosecution, bail-style reporting conditions, de-radicalisation courses and being subjected to Terrorism Prevention and Investigation Measure orders (TPIMs).

:: Passports could be temporarily withdrawn for 30 days, subject to a court review after a fortnight. Individuals who try to leave the country again could have their passport withdrawn and find themselves placed on no-fly lists.

:: Airlines ordered to comply with no-fly lists of individuals barred from travel to the UK because of suspected involvement in terrorist activities. They will also need to use interactive electronic data systems capable of receiving instructions to offload or screen any passenger. Airlines that bring banned individuals into the UK could face civil penalties, including the removal of the right to land in the UK.

:: Individuals who lost their passport would remain UK citizens and could return to Britain, if they complied with stringent conditions.

:: Those found sneaking back into the UK after their passport was cancelled would be jailed for up to five years.