Hani al-Sibai, an al-Qaeda cleric suspected of radicalising "Jihadi John" is free to stroll through Britain's cities.
Security services are understood to be investigating links between Hani al-Sibai and the west London terror network in which Jihadi John - unmasked as Mohammed Emwazi - operated.
It is claimed that al-Sibai had "captivated" a number of young Muslim men who subsequently went abroad to fight jihad.
In a court case last year, he was accused of having "provided material support to al-Qaeda and conspired to commit terrorist acts", an allegation he denies.
Despite being officially identified as an affiliate of the notorious terror network, al-Sibai, citing his human rights, has thwarted government attempts to deport him for more than 15 years.