As one of the principal responsibilities of the government is to safeguard its citizens, it is entirely reasonable that it should look at what more might be done to improve security.

As has been the case throughout the history of terrorism, government anxiety centres on what to do about those against whom there may be intelligence but no usable evidence.

Whether it be the Foreign Enlistment Act 1870 or the Terrorism Act 2000, there is no shortage of offences with which to prosecute those who go abroad to fight or train and who may threaten us on their return.

Dominic Grieve Quotes