According to Times Online, officials in London and Islamabad said Britain has asked for an assurance from Pakistan over the treatment the arrested men would receive after they are deported.
"The British wanted to be reassured that if some of these men were deported they would not face torture," sources said.
Currently 11 of the suspected terrorists, out of whom 10 are believed to be Pakistani nationals visiting Britain on student visas, are being quizzed by security officials at different locations in England.
Sources said that the latest speculations about the terror suspects being deported to Pakistan started following the arrest of a British convert to Islam James McLintock from Peshawar.
Till now the investigations into what was being seen as a major terror plot has revealed nothing substantial. Now it is being considered that the operation codenamed 'Operation Pathway' might bring more embarrassment to Britain as Prime Minister Brown had charged Islamabad of not doing enough to tackle Islamist terrorism.