Health system factors, attributed to unceremonious mass grave disposal of the unclaimed corpses by public mortuaries. Continue to position a big challenge on the increasing morbidities and mortalities, attributed to unclaimed corpses or missing dead persons. Whom, the Next of Kin (NOK), may not find them alive again, after concluded search by the Police services. Using the secured networks, such as, 1-24/7, police signal 7, 8 and upload photographs of all unknown corpses on, Interpol yellow view notices, within the medico legal span of cold storage and "cold hit". And the community social capital, such as, family members, or community households Samaritans, to mediate on previously unclaimed corpse into dignified disposal. By doing forensic identification and DNA validations, as per specific religious and cultural rites. Birth, and registration Act CAP 149, on the vital notification of cause and nature of death, of each specific citizen before disposal. Disappointment of Police services to implement quality forensic services, as the main health system factor. Have provoked, endless unceremonious mass grave disposal of unclaimed corpses in western Kenya. Like the Low uptake of quality medico legal procedures, deficiency integrated functional, forensic science department, with core forensic disciplines, as per CAP 75 Penal code. Public health officers and resident magistrates are other main health system factors, that habitually apply Health laws, governing medico legal procedures, to sustain primary prevention, using Public Health Act CAP 242 and local Government Act CAP 265, to issue affidavits and court orders. As a substitute of advocating for CAP 149 of birth and registration Act. Which, effects candid consents to NOK, to enable justice accountability of human remains, as per Human Anatomy Act CAP 249. However, not one study, has been explored, to demonstrate how health system factors of the forensic sciences, influence the increasing improper, unceremonious mass grave disposal of unclaimed corpses, by public mortuaries. Thus, the timely need, to establish how health system factors influence the uptake, and establish, how knowledge attitude and practices of mortuary /forensic service providers effect, improper unceremonious mass grave disposal in western Kenya. Study designs were, descriptive cross sectional and cohorts, of mixed approaches, with Primary and Secondary study populations. Sampling designs were Active convenient purposive, and passive, retrospective desk reviews records of past 5 years' data. Using semi-structured questionnaires, retrospective, desk review form, KII, FGD and observation guides. Data, was managed by SPSS version 26. Out of 3899 unclaimed corpses acknowledged, 1420, (36%) were improperly mass grave disposal, using Affidavits and court orders; 1262 (32%) adult male, 158 (4%) adult females. While 878, (23%), were fetus and juvenile from the law neglected cohorts since colonial era. Forensic fingerprints /DNA validation by Police services as health system factor, remained insignifican...