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- Title
Statistical Issues in Assessing Forensic Evidence.
- Authors
Kafadar, Karen
- Abstract
In 2009, the National Academy of Sciences released a report that emphasized the need for more scientific research in the evaluation of methods in the forensic science disciplines. This needed research includes statistical issues such as bias quantification, validation and estimates of accuracy and precision in different contexts. This article reviews statistical aspects of forensic science with particular reference to the design of studies that are essential to evaluate inferences from forensic evidence. Many sources can affect both the accuracy and the consistency of decisions at each stage of the process, from specimen collection to final decision. The article discusses the importance of identifying these sources and the statistical principles involved in the quantification of, and uncertainty in, estimated probabilities of error. By contrasting the design of a successful community clinical trial with two previous fingerprint studies and with bullet lead studies, this article emphasizes the need for reduced subjectivity, the types of measurements on physical evidence that can lead to more accurate and consistent decisions and the importance of carefully designed studies in the evaluation of forensic evidence.
- Subjects
FORENSIC sciences; DNA fingerprinting; NATIONAL Academy of Sciences (U.S.); DNA analysis; ERROR probability; CONFIDENCE intervals
- Publication
International Statistical Review, 2015, Vol 83, Issue 1, p111
- ISSN
0306-7734
- Publication type
Article
- DOI
10.1111/insr.12069