He would be tortured back home, see. "Ministers argued the right of the public to be protected against terrorism should be balanced against a suspect's rights not to be ill-treated," but to no avail.
"Court bans deportation of terror suspect," by Clare Dyer for the Guardian (thanks to Davida):
Government hopes of deporting dozens of terror suspects to their home countries suffered a serious setback today with the European court of human rights ruling against one such attempt.
The grand chamber of 17 judges at the Strasbourg court ruled unanimously that an attempt by Italy to send a man back to Tunisia violated the ban on torture or inhuman or degrading treatment in the European convention on human rights.
The case was brought by Nassim Saadi against Italy. The British government intervened in the hope the court would sanction the return of suspects regardless of their home country's human rights record.
Ministers argued the right of the public to be protected against terrorism should be balanced against a suspect's rights not to be ill-treated.
The court ruled that protection against torture is absolute and Saadi cannot be sent back, even though he has been convicted of terror-related offences in both Tunisia and Italy....