Embracing likelihood ratios and highlighting the principles of forensic interpretation
نویسندگان
چکیده
منابع مشابه
Robust estimation, interpretation and assessment of likelihood ratios in forensic speaker recognition
In this contribution, the Bayesian framework for interpretation of evidence when applied to forensic speaker recognition is introduced. Different aspects of the use of voice as evidence in the court are addressed, as well as the use by the forensic expert of the likelihood ratio as the right way to express the strength of the evidence. Details on computation procedures of likelihood ratios (LR)...
متن کاملOn the interpretation of likelihood ratios in forensic science evidence: Presentation formats and the weak evidence effect.
Likelihood ratios are increasingly being adopted to convey expert evaluative opinions to courts. In the absence of appropriate databases, many of these likelihood ratios will include verbal rather than numerical estimates of the support offered by the analysis. However evidence suggests that verbal formulations of uncertainty are a less effective form of communication than equivalent numerical ...
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Familial Searching is the process of searching in a DNA database for relatives of a certain individual. It is well known that in order to evaluate the genetic evidence in favour of a certain given form of relatedness between two individuals, one needs to calculate the appropriate likelihood ratio, which is in this context called a Kinship Index. Suppose that the database contains, for a given t...
متن کاملPosterior distributions for likelihood ratios in forensic science.
Evaluation of evidence in forensic science is discussed using posterior distributions for likelihood ratios. Instead of eliminating the uncertainty by integrating (Bayes factor) or by conditioning on parameter values, uncertainty in the likelihood ratio is retained by parameter uncertainty derived from posterior distributions. A posterior distribution for a likelihood ratio can be summarised by...
متن کاملWhat is the Relevant Population? Considerations for the Computation of Likelihood Ratios in Forensic Voice Comparison
In forensic voice comparison, it is essential to consider not only the similarity between samples, but also the typicality of the evidence in the relevant population. This is explicit within the likelihood ratio (LR) framework. A significant issue, however, is the definition of the relevant population. This paper explores the complexity of population selection for voice evidence. We evaluate th...
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ژورنال
عنوان ژورنال: Forensic Science International: Reports
سال: 2021
ISSN: 2665-9107
DOI: 10.1016/j.fsir.2021.100209