Just setting up your won court system is against the rules. Substitute Sharia Court for Texas Republic Court and you can see how that might be scary for the powers that are.
Dallas HAS a Sharia courts system with Islamists calling themselves judges.
Islamic tribunal in Dallas draws criticism and clients
Dallas Morning News ^ | 02/23/2015 | DIANNE SOLÍS
http://www.freerepublic.com/focus/f-news/3261029/posts