Issues and opportunities: The application of the numerical likelihood ratio framework to forensic speaker comparison

Erica Gold, Vincent Hughes

Research output: Contribution to journalReview article

  • 6 Citations

Abstract

Across forensic speech science, the likelihood ratio (LR) is increasingly becoming accepted as the logically and legally correct framework for the expression of expert conclusions. However, there remain a number of theoretical and practical shortcomings in the procedures applied for computing LRs based on speech evidence. In this paper we review how the LR is currently applied to speaker comparison evidence and outline three specific areas which deserve further investigation: namely statistical modelling, issues relating to the relevant population and the combination of LRs from correlated parameters. We then consider future directions for confronting these issues and discuss the implications for forensic comparison evidence more generally.

LanguageEnglish
Pages292-299
Number of pages8
JournalScience and Justice
Volume54
Issue number4
Early online date10 May 2014
DOIs
StatePublished - Jul 2014
Externally publishedYes

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Forensic Sciences
Population
Direction compound

Cite this

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Issues and opportunities : The application of the numerical likelihood ratio framework to forensic speaker comparison. / Gold, Erica; Hughes, Vincent.

In: Science and Justice, Vol. 54, No. 4, 07.2014, p. 292-299.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Issues and opportunities

T2 - Science and Justice - Journal of the Forensic Science Society

AU - Gold,Erica

AU - Hughes,Vincent

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KW - Forensic speech science

KW - Likelihood ratio

KW - Modelling

KW - Phonetics

KW - Relevant population

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DO - 10.1016/j.scijus.2014.04.003

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JO - Science and Justice - Journal of the Forensic Science Society

JF - Science and Justice - Journal of the Forensic Science Society

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