A practical guide for the formulation of propositions in the bayesian approach to DNA evidence interpretation in an adversarial environment

Details

Serval ID
serval:BIB_CC909B6F7E0A
Type
Article: article from journal or magazin.
Collection
Publications
Title
A practical guide for the formulation of propositions in the bayesian approach to DNA evidence interpretation in an adversarial environment
Journal
Journal of Forensic Sciences
Author(s)
Gittelson S., Kalafut T., Myers S., Taylor D., Hicks T., Taroni F., Evett I., Bright J.-A., Buckleton J.
Publication state
Published
Issued date
01/2016
Peer-reviewed
Oui
Volume
61
Number
1
Pages
86-95
Language
english
Abstract
The interpretation of complex DNA profiles is facilitated by a Bayesian approach. This approach requires the development of
a pair of propositions: one aligned to the prosecution case and one to the defense case. This note explores the issue of proposition setting in an adversarial environment by a series of examples. A set of guidelines generalize how to formulate propositions when there is a single person of interest and when there are multiple individuals of interest. Additional explanations cover how to handle multiple defense propositions, relatives, and the transition from subsource level to activity level propositions. The propositions depend on case information and the allegations of each of the parties. The prosecution proposition is usually known. The authors suggest that a sensible proposition is selected for the defense that is consistent with their stance, if available, and consistent with a realistic defense if their position is not known.
Keywords
forensic science, forensic DNA, likelihood ratio, propositions, Bayesian approach, DNA mixtures
Create date
22/02/2016 11:27
Last modification date
20/08/2019 16:47
Usage data