Muslims are obliged to follow the decisions of Syariah Courts (i.e. Shariah courts) in matters concerning their religion. The Islamic judges are expected to follow the Shafi'i legal school of Islam, which is the main "madh'hab" of Malaysia. The jurisdiction of Syariah courts is limited to Muslims in matters such as marriage, inheritance, divorce, apostasy, religious conversion, and custody among others. No other criminal or civil offences are under the jurisdiction of the Syariah courts, which have a similar hierarchy to the Civil Courts. Despite being the supreme courts of the land, the Civil Courts do not hear matters related to Islamic practices.