Those aren't full courts. There are similar Jewish/rabbinical bodies in the US that also deal with family and religious issues. Sit in on a full sharia court

Those aren't full courts. There are similar Jewish/rabbinical bodies in the US that also deal with family and religious issues. Sit in on a full sharia court and you will see procedures that techniques that answer questions that the common law has long struggled with. For example, not every witness in a sharia court must take an oath: "Article 107: A person requesting the oath of his adversary must precisely specify the events concerning which he wishes said adversary take an oath. The court shall prepare the formula of the oath as prescribed by the Shari'ah." https://www.saudiembassy.net/law-procedure-shariah-courts https://www.saudiembassy.net/law-procedure-shariah-courts