T The practice of siri (unregistered) marriage by members of the indonesian national police (polri) without prior approval from their superiors may result in severe sanctions, including dismissal with disrespect (pemberhentian tidak dengan hormat, ptdh). however, a ptdh decision issued by the leadership of polri can be challenged through the state administrative court up to the level of cassation. a supreme court decision that annuls a ptdh decree may give rise to controversy in society. this study examines whether the imposition of sanctions for siri marriage without the approval of polri leadership contradicts supreme court decision number 95 k/tun/2024, and what considerations the judges took into account both regarding the professional code of ethics for police officers and in the cassation process in adjudicating the case of dishonorable discharge of a police officer in bengkulu who engaged in an unregistered marriage without permission. the author employed a normative research method, descriptive in nature, using secondary data, with data collection techniques including literature review and interviews. the data were analyzed qualitatively and conclusions were drawn deductively. the results show that imposing sanctions on polri members who enter into unregistered marriages without their superiors’ approval is in accordance with the prevailing legal provisions, specifically violating article 11 letters c and d of national police chief regulation (perkap) number 14 of 2011 on the professional code of ethics for the indonesian national police, as well as article 4 paragraph (1) of indonesian national police regulation (perpol) number 6 of 2018. however, the supreme court annulled the ptdh decision due to procedural administrative errors. while the ethical code of conduct hearings emphasized violations of personal ethics, the cassation ruling placed greater emphasis on restorative considerations that emerged during the ethical proceedings within the polri.