This research is motivated by shifts in sentencing policy within the national criminal justice system, specifically regarding the regulation of mandatory minimum sentences for narcotics traffickers. Previously, Law Number 35 of 2009 concerning Narcotics established mandatory minimum sentences as a mechanism to ensure legal certainty, create a deterrent effect, and limit sentencing disparities. However, the enactment of the National Criminal Code (Law Number 1 of 2023) and Law Number 1 of 2026 concerning Criminal Sentence Adjustments has altered the framework for narcotics sentencing, including the abolition of mandatory minimum sentences. This study aims to analyze the *ratio legis* behind the abolition of mandatory minimum sentences for narcotics traffickers within the context of the codification of national criminal law in Indonesia. Employing a normative legal research method, the study utilizes statutory and conceptual approaches to qualitatively analyze primary and secondary legal materials. The findings indicate that the abolition of mandatory minimum sentences is part of a criminal law reform aimed at establishing a sentencing system that is more flexible, proportional, and justice-oriented, without eliminating criminal liability for narcotics traffickers. These changes reflect efforts to harmonize and recodify national criminal law.
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