Factors that are both within and outside of police discretion can pose challenges to solving homicides generally. There has been little study of no-body homicides, nor why some remain unresolved. This analysis compares solved and unsolved no-body homicides in Australia using Pearson’s chi-square tests of independence. Coroners’ findings, case law, and media reports from 1983 to 2017 were examined. Cases (N = 55; 42.4% solved) differed based on the victim’s age, who reported them missing, reward money, Coronial inquests, who determined homicide, availability of evidence and confessions, suspects lying, establishing crime scenes, and motivations.

中文翻译：

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比较澳大利亚已解决和未解决的无人杀人案：探索性分析

警察自由裁量权内外的因素都可能对解决凶杀案提出挑战。几乎没有关于无人凶杀的研究，也没有为什么仍未解决。该分析使用皮尔逊独立性卡方检验比较了澳大利亚已解决的和未解决的凶杀案。审查了死因裁判官的调查结果，判例法和1983年至2017年的媒体报道。案件（N = 55；已解决42.4％）因受害人的年龄而异，他们报告他们失踪，赏金，死因调查，确定凶杀，证据和供认，嫌疑人说谎，犯罪现场和动机。