The delivery of forensic science evidence in a clear and understandable manner is an important aspect of a forensic scientist's role during expert witness delivery in a courtroom trial. This article describes an Integrated Evidence Platform (IEP) system based on spherical photography which allows the audience to view the crime scene via a virtual tour and view the forensic scientist's evidence and results in context. Equipment and software programmes used in the creation of the IEP include a Nikon DSLR camera, a Seitz Roundshot VR Drive, PTGui Pro, and Tourweaver Professional Edition. The IEP enables a clear visualization of the crime scene, with embedded information such as photographs of items of interest, complex forensic evidence, the results of laboratory analyses, and scientific opinion evidence presented in context. The IEP has resulted in significant improvements to the pretrial disclosure of forensic results, enhanced the delivery of evidence in court, and improved the jury's understanding of the spatial relationship between results.
Luminol is a valuable tool for crime scene examiners. The use of this reagent, primarily at crime scenes, allows the visualisation of occult or diluted blood, and the detection of small quantities of blood. Various different luminol formulations have been proposed over the years. In this study we have compared four different formulations with respect to luminescence and longevity. DNA profiling of blood treated with the four formulations with AMPFlSTR® SGM Plus TM and low copy number (LCN) DNA analysis allow us to make recommendations of the most appropriate luminol formulations to be used under particular case circumstances.
RÉSUMÉ
Le luminol est un outil de valeur pour les officiers d'identification sur les scènes de crime. L'utilisation de ce réactif permet la visualisation de sang dilué ou occulte et la détection de petites quantités de sang. Depuis des années, de nombreuses préparations différentes de luminol ont été proposées. Dans cette étude nous avons comparé quatre préparations différentes quant à leur luminescence et à leur longévité. Grâce aux analyses d'ADN du sang traité avec les quatre préparations(analyse par AMPFlSTR® SGM Plus TM et nombre de copies limité (NCL)), nous pouvons émettre des recommandations sur les préparations de luminol les plus appropriées à utiliser selon les circonstances particulières d'un cas.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.