AFTE Store - Isolated Pairs Research Study

This research looked into whether a trained, qualified firearm examiner can make a determination using pattern matching techniques in the absence of a firearm, test fires, and case information. Test kits included 20 samples consisting of two cartridge cases in each sample. Each examiner was asked to make a conclusion as to identification, exclusion, or inconclusive on the pair in each sample. As of September 2016, 126 examiners from across the world have participated, with an overall error rate of 0%, sensitivity of 99.7%, and specificity of 79.9 %.

Full Journal: AFTE Journal Vol 50 No 1 (2018)