<![CDATA[Transnational terrorism financing has become a serious challenge to international security and stability, necessitating interstate judicial cooperation through extradition and mutual legal assistance (MLA) mechanisms. This study analyzes the implementation of extradition and MLA mechanisms in Indonesia in relation to the synchronization of the 2000 United Nations Convention on Transnational Organized Crime (UNTOC) and the 1999 International Convention for the Suppression of the Financing of Terrorism into Indonesia's national legal framework. This study aims to assess the extent to which these international legal instruments have been integrated into national law and to identify gaps in their implementation in practice. This study uses a sociological juridical approach, combining analysis of legal norms with their implementation in practice. The case studies of Hambali and Syam Organizer illustrate the operational dynamics of extradition and MLA implementation in transnational terrorism financing cases. The results show that although Indonesia has a relatively comprehensive legal framework for international cooperation, the effectiveness of its implementation remains influenced by factors such as state sovereignty, procedural complexity, and differences in legal systems across countries. This study also found that synchronization of the 2000 UNTOC and the 1999 Convention has been carried out through Law Number 1 of 1979 concerning Extradition, Law Number 1 of 2006 concerning Mutual Assistance in Criminal Matters, and Law Number 9 of 2013 concerning the Prevention and Eradication of Criminal Acts of Terrorism Financing. However, there are still gaps in implementation, especially regarding the limited use of multilateral conventions as a basis for extradition without bilateral agreements, and the complexity of MLA procedures, both of which affect the effectiveness of international cooperation.]]>
