This study examines whether changes made to the investigation procedures within the Rochester Police Department’s homicide unit have an effect on homicide clearance net of theoretically significant variables related to victim and police devaluation, event characteristic, and victim lifestyle. It examines 132 homicides investigated by the homicide unit over 4 years consisting of the pre-intervention period and post-intervention period. It is hypothesized that investigation tactics will affect the odds of clearance, even after controlling for other theoretically relevant variables. The findings support this hypothesis, suggesting that the approaches and tactics police departments implement within their investigative units are important.

中文翻译：

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调查策略和战术对杀人案清除的影响

这项研究调查了罗切斯特警察局凶杀案部门内调查程序的更改是否对杀人案清除产生影响，该净值具有与受害人和警察贬值，事件特征和受害人生活方式有关的理论上重要的变量。它审查了由杀人罪部门在4年内调查的132起凶杀案，包括干预前和干预后期间。假设即使在控制了其他理论上相关的变量之后，调查策略也会影响清除的几率。这些发现支持了这一假设，表明警察部门在其调查单位内采取的方法和策略很重要。