Evaluating Reference Sets for Score-Based Likelihood Ratios for Camera Device Identification

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2022-08-05
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Reinders, Stephanie
Ommen, Danica
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Center for Statistics and Applications in Forensic EvidenceStatistics
Abstract
An investigator wants to know if an illicit image captured by an unknown camera was taken by a person of interest’s (POI’s) phone. Score-based likelihood ratios (SLRs) have been used to answer this question in previous research. We explore whether the reference set used to calculate SLRs makes a difference in the outcome when the questioned image comes from a phone of the same model as the POI’s phone.
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This presentation is from the 106th International Association for Identification (IAI) Annual Educational Conference, Omaha, Nebraska, July 31-Aug 6, 2022. Posted with permission of CSAFE.
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