Islamic criminal law in Aceh sharia courts hear and rule on both civil cases under Islamic law (such as divorce and inheritance) and criminal law under the "qanuns". However, civil cases continue to be the vast majority of cases heard by the court. In 2016 the courts received 10,888 first instance civil cases and 131 appeals, compared to 324 first instance criminal cases and 15 appeals. The sharia courts are part of the broader Indonesian legal system. Their decisions can be appealed to the Supreme Court, and their judges (including the chief judge) are appointed by the Supreme Court. Amnesty International said that they are
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