TY - JOUR PY - 2013// TI - Establishing likelihood ratios for patterned garment comparisons from seam measurement data JO - Journal of forensic sciences A1 - Johnson, D. B. A1 - Perlin, Victor E. A1 - Rohde, Mitchell M. A1 - Thomas, Alice C. A1 - Luu, Cuong Q. A1 - Chang, Jennifer SP - 631 EP - 644 VL - 58 IS - 3 N2 - It is often challenging to ascribe an objective measure of confidence for identifications based on surveillance imagery from a crime scene. The present work seeks to address this deficiency in the case of garment comparison evidence by developing a quantitative method for establishing a conservative lower bound on the likelihood ratio (LR) for identifications involving patterned garments. The method is based on statistical analysis of pattern offset measurements taken from a sample of garments of the same type (manufacturer, style, and size) as the seized evidence. The developed analysis framework was demonstrated on different types of garments over a range of modeled surveillance imaging scenarios with variable image quality; the lower bounds on the LRs ranged from approximately 10-1 to over 400-1. The statistical model was tested and validated through a large-scale empirical study involving both simulated and human observer-performed garment comparisons.

Language: en

LA - en SN - 0022-1198 UR - http://dx.doi.org/10.1111/1556-4029.12125 ID - ref1 ER -