Belkacem and five other men, native-born Algerians who were charity workers and colleagues of his, were arrested on suspicion of plotting to bomb the American embassy in Bosnia. They are known as the Algerian Six.[6] The other five men were released in 2009. This followed the Supreme Court decision in Boumediene v. Bush (2008) that said the military commissions were unconstitutional and provided for detainees to have their habeas corpus petitions heard by the US federal civilian court.