Use of Informal Sharia Law for Civilizational Populist Mobilization in the 2024 Indonesian Elections

The Defenders Front of Islam or the Front Pembela Islam (FPI) is an Islamist civilizational populist movement in Indonesia. Its religious and political blueprints have been a challenge to the elites in power. In 2017 and 2019, it was involved in the contest of electoral politics to fight against the elites by implementing the populist politics that tends to undermine the democratic process. As a result, it was banned in 2020 but re-established a year later. In 2024 elections, it supports for Anies Baswedan-Muhaimin Iskandar to compete against Prabowo Subianto-Gibran Rakabuming and Ganjar Pranowo-Mahfud MD. The findings suggest that by applying the Islamist civilizational populism, the FPI instrumentalizes the informal religious law to support its political mobilization. It emphasizes the legal-centric perspective of “sharia,” which gives the FPI’s activists and its wider audience only one imperative option to solve the problem: join in the populism. We arguably state that the informal religious law can contribute to the process of Islamist civilizational populist mobilization.