Evaluating forensic biology results given source level propositions

The evaluation of forensic evidence can occur at any level within the hierarchy of propositions depending on the question being asked and the amount and type of information that is taken into account within the evaluation. Commonly DNA evidence is reported given propositions that deal with the sub-source level in the hierarchy, which deals only with the possibility that a nominated individual is a source of DNA in a trace (or contributor to the DNA in the case of a mixed DNA trace). We explore the use of information obtained from examinations, presumptive and discriminating tests for body fluids, DNA concentrations and some case circumstances within a Bayesian network in order to provide assistance to the Courts that have to consider propositions at source level. We use a scenario in which the presence of blood is of interest as an exemplar and consider how DNA profiling results and the potential for laboratory error can be taken into account. We finish with examples of how the results of these reports could be presented in court using either numerical values or verbal descriptions of the results.

Influence de la vaccine sur la population, ou De la gastro-entérite varioleuse avant et depuis la vaccine / par M. A. Bayard,.... précédée des rapports / de MM. Roche et Bricheteau ; des observations de M. Ch. Dupin et des propositions de M. H. Carnot...

Comprend : Rapport / de M. Bricheteau ; Rapport / de M. Roche

« Ordre particulier des Élémens de Géométrie qui servent à la pratique des arts, » et autres propositions attribuées à ROBERVAL. (1651).

Contient : « Elementa musicæ » ; « Brieves observations sur la composition des mouvemens et sur le moyen de trouver les touchantes des lignes courbes, » par Roberval