Trace DNA recovery rates from firearms and ammunition as revealed by casework data

Understanding casework DNA recovery rates per evidence type is crucial for advancing forensic methodologies and practices. This study assesses DNA recovery and profile data for 17 firearm parts (including cartridges, bullets and cases: CBCs) using New South Wales firearms casework data from 2015 to 2019. CBCs were further classified as shotgun or metallic cartridges and as unfired or fired. Quantitative data analysis showed that the least DNA...