The study explores in depth the relationship between missing persons’ psychosocial and criminological characteristics/circumstances and violent-fatal outcomes (suicide and homicide). A relational analytical explicative study of 929 cases and controls was designed using a retrospective and stratified design. Data gathering was conducted through the content analysis of judicial and police information, as well as the development of psychological autopsy techniques and semi-structured interviews with the persons involved in the missing person cases including offenders in prison. Bivariate and multivariate statistical techniques were utilised for analyses. The findings showed that there are different risk and protective factors which can distinguish between good state of health, suicide, and homicide outcomes. This research entails implications for prevention and police risk assessment system.

该研究深入探讨了失踪人员的社会心理和犯罪学特征/情况与暴力致命结果（自杀和他杀）之间的关系。采用回顾性分层设计对 929 例病例和对照进行相关分析解释性研究。数据收集是通过对司法和警方信息的内容分析、心理尸检技术的发展以及对失踪人员案件的涉案人员（包括监狱中的罪犯）进行半结构化访谈来进行的。利用双变量和多变量统计技术进行分析。研究结果表明，存在不同的风险和保护因素，可以区分良好的健康状况、自杀和他杀结果。这项研究对预防和警察风险评估系统具有重要意义。