Via the Guardian (h/t DW):
Seven Algerian nationals suspected of terrorism have resisted attempts to deport them by turning the tables on the government's support for using secret evidence in court.
In a complex judgment affecting the procedures of the special immigration appeals commission (Siac), the supreme court dismissed the home secretary's objection to material being presented that could not be tested in a hearing.
Five justices at the supreme court, including the president, Lord Phillips, unanimously allowed the appeals of the Algerians, who fear they will be tortured if returned to north Africa.(source)