London Mayor Boris Johnson has called for tougher controls over terror suspects after the "absurd" escape of Mohammed Ahmed Mohammed who managed to evade surveillance by wearing a burqa.
Mr Johnson told LBC radio that it was clear that Terrorism Prevention and Investigation Measures (Tpims) were not working as they should if a "fellow can get into a burqa and evade his invigilators".
The mayor said it was clear to him - though unconfirmed by the police - that Mohamed had been able to contact supporters to help him escape, despite being under the order.
"This guy Mohamed was obviously helped to escape. I don't believe for a minute that he did it on his own. He was in contact with people who are sympathisers."
"Characters such as him - and even if he doesn't pose an immediate threat to this country, it is plain he is a danger - should be more closely invigilated than they currently are and I am sure that is a point that Theresa May will be taking up very actively."
Mr Johnson blamed "coalition politics" for watering down the previous control order system and urged Home Secretary Theresa May to be tough with the Liberal Democrats over the policy.