Reframing the Debate: A Question of Probability, Not of Likelihood Ratio

Science and Justice, Vol. 56(5), p. 392-396, 2016

7 Pages Posted: 3 Oct 2016

See all articles by Alex Biedermann

Alex Biedermann

University of Lausanne

S. Bozza

Ca Foscari University of Venice - Dipartimento di Economia

F. Taroni

Independent

C. G. G. Aitken

University of Edinburgh - School of Mathematics

Date Written: October 1, 2016

Abstract

Evidential value is measured by a likelihood ratio. This ratio has two components, the probability, or probability density, of the evidence if the prosecution proposition is true and the probability (density) of the evidence if the defence proposition is true. It takes the form of a single value, even if these probabilities are subjective measures of belief of the reporting forensic scientist.

Keywords: Uncertainty, Probability, Likelihood Ratio, Evidence Evaluation

Suggested Citation

Biedermann, Alex and Bozza, S. and Taroni, F. and Aitken, C. G. G., Reframing the Debate: A Question of Probability, Not of Likelihood Ratio (October 1, 2016). Science and Justice, Vol. 56(5), p. 392-396, 2016, Available at SSRN: https://ssrn.com/abstract=2846500 or http://dx.doi.org/10.2139/ssrn.2846500

Alex Biedermann (Contact Author)

University of Lausanne ( email )

Faculty of Law, Criminal Justice and Public Admin.
Lausanne, Vaud 1015
Switzerland

HOME PAGE: http://www.unil.ch/unisciences/alexbiedermann

S. Bozza

Ca Foscari University of Venice - Dipartimento di Economia ( email )

Cannaregio 873
Venice, 30121
Italy

F. Taroni

Independent

C. G. G. Aitken

University of Edinburgh - School of Mathematics ( email )

United Kingdom
0131 650 4877 (Phone)

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