A convert to Islam who had been stripped of British citizenship as a consequence of his alleged religious extremism is appealing to the Supreme Court on the basis he is stateless.

The man, known only as”B2″, dropped his citizenship in 2011.

The Home Secretary, Theresa May (pictured), used nationality powers to withdraw B2’s citizenship as a consequence of his alleged activity.

Under international law, it’s illegal to leave a person stateless and whether B2 is are the question for the judges to ascertain.

B2’s appeal comes amid disagreements in Parliament over proposals to ban British nationals from coming back to the UK if they are thought to have been engaged in terrorism overseas.

Ms May already has the capacity to strip someone of their citizenship when they also hold citizenship of another country.

After six decades, the household were granted British nationality.

The man studied design and communications at school and converted to Islam at age 21.

In her case against him, the Home Secretary mentioned the fact that B2 became a follower of al-Qaeda from the Arabian Peninsula (AQAP) and in 2010 made a trip to its foundation in Yemen — at the time run by American-Yemeni preacher, Anwar al-Awlaki.

Followers of all AQAP have been engaged in bomb plots and generate a magazine for jihadists qualified Inspire which serves to attract more recruits from the West.

Ms May stripped B2 of his nationality in 2011, alleging that he was involved in terrorist activity.

Court papers provide that MI5 evaluated the guy may be an”active threat to the safety and security of the united kingdom and its inhabitants”.

Two days after eliminating his nationality, Ms May functioned a second order providing that he be deported to Vietnam. He was afterward –placed in detention.

B2 appealed against Ms May’s conclusion into the Special Immigration Appeals Commission, a court handling cases involving national security that holds hearings in partial secrecy, arguing he had been left stateless.

The court found in favour of B2 but the Home Secretary won on appeal.

Adhering to this and another situation, Parliament was asked by the Government to amend the law in order to allow the Home Secretary to rescind a individual’s citizenship of it had been believed the individual in question could rely on another nationality — even when they had British citizenship at the time of rescindment.

The hearing in the Supreme Court is expected to last two days.