A novel method for assessing the shedding of fibre in forensic science: investigating the effects of washing

The evaluation of the shedding capacity of a garment is crucial in forensic analysis to understand fibre transfer mechanisms during contact activities. While adhesive tapes are commonly used, the lack of standardised pressure application -often done manually- poses a challenge. In addition, while previous studies have examined the effects of washing on fibre evidence, there is a notable absence in the literature regarding its impact on garment shedding capacity. This study aims to address these gaps by proposing a practical method to assess garment shedding capacity. Conventional tape lifting experiments, involving manual pressure application, were conducted for comparison with the novel method proposed in this study. Controlled conditions for reproducible experiments were achieved using a cost-effective friction tester and automated data collection through photography and ImageJ image processing software. Through controlled simulations, this study seeks to examine the relationship between garment shedding capacity, fibre transfer dynamics, and the effects of textile washing during laundry cycles.