This article analyzes the legal construction of money laundering from environmental crimes from the perspective of the National Criminal Code and the strengthening of criminal accountability that needs to be built to answer the challenges of its enforcement. The background of this research is based on the increasingly complex of environmental crimes with an economic dimension, where the results of crimes are often disguised through various financial instruments to appear legally legitimate. The research uses normative legal methods with a statutory and conceptual approach, sourced from primary legal materials in the form of regulations related to money laundering and the environment, as well as secondary legal materials in the form of scientific journals and previous legal literature. The results of the study show that environmental crimes have not been explicitly and consistently recognized as the predicate crime of money laundering, while the investigative authority that has been expanded through the Constitutional Court's decision still faces obstacles in inter-institutional coordination. The research recommends strengthening the harmonization of norms between the National Criminal Code and money laundering regulations, accompanied by the consolidation of cross-sectoral investigation authority, so that the countermeasures against money laundering resulting from environmental crimes can run more effectively and responsive to the dynamics of natural resource-based economic crimes in Indonesia.
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