This document discusses Shariah supervision in Islamic financial institutions. It outlines the models of Shariah advisory services, including international Shariah boards, national Shariah boards, institutional Shariah boards, and outsourcing advisory services. It also describes the establishment of Shariah committees and their duties, which include advising the board, endorsing compliance manuals and documents, and providing written Shariah opinions. The document cautions against excessive flexibility in decisions and explores challenges in Shariah supervision, such as balancing monetary gains with Shariah objectives.