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Conference Paper: Evaluation of forensic evidence in DNA mixture using RMNE

TitleEvaluation of forensic evidence in DNA mixture using RMNE
Authors
KeywordsDeoxyribonucleic acid
Probability of exclusion
Random man not excluded
Issue Date2013
PublisherInternational Statistical Institute (ISI).
Citation
The 59th World Statistics Congress (WSC) of the International Statistical Institute (ISI), Hong Kong, China, 25-30 August 2013 How to Cite?
AbstractTo establish the link between an arrested suspect and a crime case based on a DNA mixture, one of the two main statistical tools used by forensic scientists is the random man not excluded (RMNE) probability. The tradi- tional RMNE approach omits any knowledge on the number of contributors and is commonly regarded as being less powerful than the likelihood (LR) approach. In view of the simplicity of interpretation of RMNE, which is the major advantage of using it to present DNA evidences in court, we present a new concept for the interpretation and calculation of the RMNE proba- bility. A new approach for determining the non-exclusion of a random man is proposed, upon which a general formula for the calculation of RMNE probability is developed. By taking account of the number of contributors, the new RMNE probability can be much more powerful for evaluating the evidentiary value of non excluded suspects, compared to the traditional RMNE approach. As illustrated by an example based on a real rape case, our approach can be easily implemented and can shorten the gap between the two approaches by utilizing more information of the case.
DescriptionInvited Paper Sessions (IPS) 21: Statistical reasoning in law
Persistent Identifierhttp://hdl.handle.net/10722/199491

 

DC FieldValueLanguage
dc.contributor.authorFung, TWKen_US
dc.contributor.authorChung, YKen_US
dc.date.accessioned2014-07-22T01:20:47Z-
dc.date.available2014-07-22T01:20:47Z-
dc.date.issued2013en_US
dc.identifier.citationThe 59th World Statistics Congress (WSC) of the International Statistical Institute (ISI), Hong Kong, China, 25-30 August 2013en_US
dc.identifier.urihttp://hdl.handle.net/10722/199491-
dc.descriptionInvited Paper Sessions (IPS) 21: Statistical reasoning in law-
dc.description.abstractTo establish the link between an arrested suspect and a crime case based on a DNA mixture, one of the two main statistical tools used by forensic scientists is the random man not excluded (RMNE) probability. The tradi- tional RMNE approach omits any knowledge on the number of contributors and is commonly regarded as being less powerful than the likelihood (LR) approach. In view of the simplicity of interpretation of RMNE, which is the major advantage of using it to present DNA evidences in court, we present a new concept for the interpretation and calculation of the RMNE proba- bility. A new approach for determining the non-exclusion of a random man is proposed, upon which a general formula for the calculation of RMNE probability is developed. By taking account of the number of contributors, the new RMNE probability can be much more powerful for evaluating the evidentiary value of non excluded suspects, compared to the traditional RMNE approach. As illustrated by an example based on a real rape case, our approach can be easily implemented and can shorten the gap between the two approaches by utilizing more information of the case.-
dc.languageengen_US
dc.publisherInternational Statistical Institute (ISI).-
dc.relation.ispartofWorld Statistics Congress (WSC) of the International Statistical Institute (ISI)en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectDeoxyribonucleic acid-
dc.subjectProbability of exclusion-
dc.subjectRandom man not excluded-
dc.titleEvaluation of forensic evidence in DNA mixture using RMNEen_US
dc.typeConference_Paperen_US
dc.identifier.emailFung, TWK: wingfung@hku.hken_US
dc.identifier.emailChung, YK: yukchung@hku.hken_US
dc.identifier.authorityFung, TWK=rp00696en_US
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros231274en_US

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