How on Earth does a guy with a history of crime relating to international terrorism gain entry to a new country? Do they not have immigration declarations in the UK? these people are mad, soon there will be anguish in the UK over a new Islamic bombing horror and they will stand around saying "how did this happen" I am speechless
He has been questioned by both Scotland yard and members of the Intelligence Services.
It's very simple really - he's a UK citizen and as a UK citizen he has a right to return to the UK, a right to claim benefits where applicable and a right to free speech including criticising Britain.
I gather that the intell services consider him a low threat a bit of a Walter Mitty character. They will have approved his access back into the country without detention because they want him to be here - presumably it's cheaper to pay him £52 a week to stay here and be watched than spend thousands sending someone to Pakistan to watch him. . .