Creation of a universal experimental protocol for the investigation of transfer and persistence of trace evidence:Part 1 - From design to implementation for particulate evidence

Understanding the transfer and persistence of different types of trace evidence between different donor and receiving surfaces under specific conditions, circumstances and alleged competing defence and prosecution hypotheses is a significant need. Acquiring such a knowledge base enables hypothesis testing to be undertaken more readily and with greater confidence. A longstanding goal has been to develop a unified approach to transfer and persistence studies which are fit for purpose but also scalable.Here we propose a low cost, universal experimental protocol using a recognised and well researched proxy material for the development and aggregation of ground truth transfer and persistence data at scale. We also propose and provide the tools to enable the creation of an open source and open access data repository of experimental data to act as a resource for practitioners and researchers in addressing transfer and persistence questions

Delta-9-tetrahydrocannabinol (THC) Measurement Uncertainty Dataset

Method validation data generated as part of quantifying the measurement uncertainty of delta-9-tetrahydrocannabinol (THC, the main active ingredient of cannabis) in whole Blood using SPE and LC/MS/MS Key words calibration curve, coverage factor, method validation, method precision, standard solutio

Creation of a universal experimental protocol for the investigation of transfer and persistence of trace evidence:Part 2 – Implementation and preliminary data

This is the second paper on the development and implementation of a universal experimental protocol for transfer and persistence of trace evidence. Here, we present the results of five individual researchers who implemented the universal experimental protocol for the first time. Over 2500 images were collected, computationally analysed and statistically compared. The results were shown to be reliable and consistent under all conditions tested and were used to model the rate of loss of transferred particles over a 7-day timescale. The protocol was additionally extended to include a test of camera settings. The protocol was found to be useable and robust in this preliminary trial paving the way for it to be deployed more widely

Reformatter for EMBL's HLA aligner

Tesis de Doctorado en Ciencias presentada al Colegio de Postgraduados, Región Veracru

Image Data from Transfer and Persistence of UV powder trace material

Dataset of 2718 raw images taken for the study of transfer and persistence of UV powder deposited on a variety of clothing material. This dataset constitutes a ground truth for use as a model for forensic trace evidence. This data is made available under a CC-BY 4.0 international licence. https://creativecommons.org/licenses/by/4.0