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检查人员对指纹的认知的一致性 微小的稀有性 稀有性
Adele Quigley-McBride1, Heidi Eldridge2, Brett Gardner3
1Department of Psychology, Simon Fraser University, Canada.
Forensic science international
|October 15, 2024
概括
摩擦检查员 (FREs) 对指纹细节稀有性的看法各不相同,影响决策. 本研究调查了FREs以了解这些感知,并建议基于共识的估计来提高指纹分析的一致性.
科学领域:
- 法医科学 法医科学 法医科学
- 模式 证据分析 分析.
- 人类的感知 人类的感知
背景情况:
- 摩擦边缘检查人员 (FREs) 在识别和排除决策时依赖指纹中的细节 (独特特征).
- 对细节稀有性的主观看法可能会导致FREs对指纹证据的意见不一致.
- 了解检查员在感知细节频率上的变化对于改善法医决策至关重要.
研究的目的:
- 评估专家FREs对不同类型细节的稀有性的看法.
- 量化这些感知在考生之间和随着时间的推移而变化的变化.
- 为提高指纹比较决策的一致性提供建议.
主要方法:
- 在两个不同的时间点调查的专家FREs (N=132在时间1,N=99在时间2).
- 收集了关于考官对各种细节频率的信念的数据.
- 分析了频率估计中的检查员间和检查员内部的变化.
主要成果:
- 对于最常见和最不常见的细节,感知频率的变化明显较低.
- 随着时间的推移和最近发现罕见微小的发现后,FREs对微小频率的估计增加了.
- FREs报告说,在指纹比较决策中经常使用感知到的微小稀有性.
结论:
- 对细节频率的感知是动态的,在FREs之间可能会有所不同.
- 基于共识的频率估计可以作为一个实际的工具,以提高基准税的应用一致性.
- 提供了建议,以提高指纹检查中的决策的可重复性和可重复性.
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