This test is designed to challenge the forensic trace evidence analyst or biologist that routinely compares and screens human hair samples to determine whether two samples could have a common origin. It is designed for the trace evidence or biology examiner who may exclude hairs from subsequent DNA analysis due to their microscopic characteristics in relation to a known source. Samples consist of groups of questioned human hairs to compare to groups of known human hairs. Analysts are asked to determine if there is tissue present on the human hairs. All distributed samples are examined and compared at the FTS laboratory facility by two court qualified examiners to ensure homogeneity between test samples. These hair examiners are subcontracted by FTS and we are responsible for their work. There are a limited number of this test available, please order early to ensure availability.