Effective fatwas and shariatisation in Indonesia, Malaysia, and Singapore

Abstract

This article examines the growing institutionalisation of fatwas and the subsequent “shariatisation” of public life in Indonesia, Malaysia, and Singapore. Challenging the assumption that secular nation-states inherently marginalise Islamic traditions, the author argues that fatwas have evolved into “effective” regulatory tools that deeply influence national law, public policy, and societal norms. Through a comparative analysis of three key areas—the policing of “deviant” Islamic sects (such as Ahmadiyah and Shia), the regulation of Islamic finance, and the implementation of halal certification—this study demonstrates how sharia principles are organically embedded into modern state governance. Despite differing political structures and Muslim demographics, these Southeast Asian nations exhibit a shared reliance on state-aligned religious bodies (MUI, JAKIM/NFC, and MUIS) to mediate between Islamic doctrine and the state. Ultimately, this process creates “sharia zones” that can both accommodate modern economic systems and risk institutionalising religious exclusion.