Sharia law experts are called Mufti. They are in charge of issuing fatwas (or opinions ) to assist judges or clients to decide cases in the fields of marriage, divorce, and inheritance.
It is called Sharia
They are called Sharia law.
Sharia'
sharia
the Islamic law code is called sharia
An Expert Aviator is called an "Ace".
A cultures expert is called an ethnologist.
what ia an expert pilot called
A bully expert is called a bullnation
A grammar expert is called a grammatician or a grammarian.
Ansar al-Sharia is any of a range of radical Islamist groups which advocate Sharia law.
Expert advice or expert guidance.