Basic forensic identification of artificial leather for hit-and-run cases.

摘要: Single fibers retrieved from a victim's garments and adhered to the suspect's automobile have frequently been used prove relationship between victim automobile. Identification method for single fiber discrimination has already conducted. But, case was encountered requiring of artificial leather fragments bag fused bumper In this report, basic studies were conducted on identification leathers materials. Fiber morphology observed using scanning electron microscopy (SEM), color these sheets evaluated by microspectrophotometry (MSP), components measured infrared micro spectrometry (micro-FT-IR) inorganic contents ascertained micro-X-ray fluorescence (micro-XRF). These two methods contribute other analytical too, in utilized methods. The combination techniques showed high potential ability forensic examinations samples. regard with smooth surface sheet samples, total 182 obtained, including 177 colored directly 10 24 manufacturers Japan, five them purchased at retail circulation products. Nine samples suede-like 6 supplied 2 3 as retailing product. characteristic markings, XRF could effectively discriminate sheets. results micro-FT-IR, evaluation MSP contained elements enabled about 92% 15,576 pairs comparison. Five form products discriminated their chemical composition into four categories, addition information result, they clearly distinguished. Suede-like extra-fine observation SEM imaging, providing discriminating ability, divided three categories information, it possible all nine examined.