HAIR AND FIBER TRANSFER IN AN ABDUCTION CASE - EVIDENCE FROM DIFFERENT LEVELS OF TRACE EVIDENCE TRANSFER

Levels of trace evidence transfer were examined in a casework context. A girl was allegedly abducted in a car and rape attempted by the accu sed, who denied any contact with the victim. Clothing worn by the vict im and the accused, and the covers from the front seats of the car, we re analyzed for trace evidence. Three types of corresponding fibers an d four possible pathways of transfer were identified. Synthetic fibers similar to those composing the car seat covers were located on the vi ctim's clothing, consistent with direct transfer. Secondary transfer w as indicated by dyed brown human head-type hairs (possibly originating from the accused's wife) located on the seat covers and on the victim 's clothing. Secondary and possibly tertiary transfer was indicated by pink synthetic material and associated fibers (possibly originating f rom the victim's mother) located on the victim's clothing, a car seat cover and the accused's clothing. Light microscopy, comparison microsc opy, and cross-sectioning techniques were used. The multiple fiber mat ches and the differing pathways and levels of transfer increased the s trength of the association between the accused and the victim. After t he fiber evidence was led at the trial, the accused pleaded guilty, th ereby affirming the value of secondary transfer evidence.