期刊
FORENSIC SCIENCE INTERNATIONAL
卷 276, 期 -, 页码 93-106出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2017.04.009
关键词
Fingerprint matching; Cognitive bias; Irrelevant contextual information
资金
- EPSRC [EP/J004995/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J004995/1] Funding Source: researchfish
One study is presented which explores the biasing effects of irrelevant contextual information on a fingerprint matching task. Bias was introduced by providing the outcomes of a DNA test relating to each fictitious case under consideration. This was engineered to suggest either a match, no match, or an inconclusive outcome, and was thus either consistent, misleading or unbiased depending on the ground truth of each fingerprint pair. The results suggested that, when the difficulty of the fingerprint matching task was measurably increased, participants became more vulnerable to the biasing information. Under such conditions, when performance was good, misleading evidence lowered accuracy, and when performance was weaker, consistent evidence improved accuracy. As such, the results confirmed existing demonstrations of cognitive bias from contextual information in the fingerprint task. Moreover, by taking a process-based approach, it became possible to articulate the concerns, and the potential solutions, at each stage of the workflow. The results offer value for the forensic science community in extending the evidence-base regarding cognitive bias, and in articulating routes to improve the credibility of fingerprint decisions. (C) 2017 Published by Elsevier Ireland Ltd.
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