<![CDATA[At present, Indonesia needs to update the Indonesian Criminal Code to replace the Dutch Colonial Criminal Code that still exists. The jurists, especially criminal law experts, have been involved in a lengthy debate on overhauling, reformulating, revising, and even reforming the Criminal Code to align with Indonesian values. This study aims to determine the foundation of the policy to expand the concept of adultery and the values protected by the expansion contained in Article 411 of Law Number 1 of 2023 on the Criminal Code. This study was a descriptive study that used a normative juridical approach. The data collection techniques employed secondary data with a study of documents. The data were analyzed with qualitative methods. The result shows that the foundation of the expansion policy is the perspective of criminal policy. The formulation of the adultery offense in Article 284 of the Criminal Code is a problematic policy because it is not in accordance with the values of the Indonesian people. The formulation of the article only convicts the offenders who are committed in marriage. The provision does not require punishment to unmarried convicts. The arrangements for adultery offenses that are still in effect today are not based on a view of life. They do not reflect the social structure of the Indonesian people with the characteristics of kinship, groups, and beliefs. On the other hand, Article 411 of Law Number 1 of 2023 on the Criminal Code expands the concept of adultery to protect the religious and moral values closely related to Pancasila.DOI: https://doi.org/10.22304/pjih.v10n1.a1]]>
