Syria's judicial branches include the Supreme Constitutional Court, the High Judicial Council, the Court of Cassation, and the State Security Courts. Islamic jurisprudence is a main source of legislation and Syria's judicial system has elements of Ottoman, French, and Islamic laws. Syria has three levels of courts: courts of first instance, courts of appeals, and the constitutional court, the highest tribunal. Religious courts handle questions of personal and family law. The Supreme State Security Court (SSSC) was abolished by President Bashar al-Assad by legislative decree No. 53 on 21 April 2011.