Application of Islamic law by country whether to have inheritance questions decided by the Islamic courts or by the civil courts, but a 2006 amendment eliminated this possibility; the same amendment gave Islamic courts new jurisdiction over property disputes, including financial and economic matters. Muslims seeking a divorce must also file their claim in Islamic courts. The Compilation of Islamic Law 1991 () regulates marriage, inheritance, and charitable trusts (wakaf). Islamic law falls outside the jurisdiction of the Constitutional Court. Since 2006, a number of districts have issued local ordinances based on sharia. Article 167 of the constitution states that all judicial rulings must be based
Ban on sharia law restrict judges from consulting Shariah, or foreign and religious laws more generally". As of 2013, all but 16 states have considered such a law. In November 2010, voters in Oklahoma approved a ballot measure to amend the state constitution to ban sharia from state courts. The law was then updated to include all foreign or religious laws. The law was challenged by an official of the Council on American-Islamic Relations. In November 2010 a federal judge ruled the law to be unconstitutional and blocked the state from putting it into effect. The court found the ban had the potential to