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Relevant populations and data

Presented by: 
Colin Aitken University of Edinburgh
Friday 2nd September 2016 - 14:00 to 14:30
INI Seminar Room 1
The likelihood ratio has many advocates amongst forensic statisticians as the best way to evaluate evidence. Its use often requires training data from populations whose relevance to the issue at trial is determined by propositions put forward by the prosecution and defence in a criminal trial. The choice of these populations and the choice of the sampling of data from them are two reasons for the courts to query an approach to evidence evaluation based on the likelihood ratio. Consideration of these choices will be discussed in the context of recent work on the evaluation of evidence of the quantities of cocaine on banknotes in drug-related crimes.
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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons