Trace Evidence
The term trace evidence is generally thought of as any type of evidence occurring in sizes so small that it can be transferred or exchanged between surfaces without being noticed.
The South Dakota DCI Forensic Lab determines if a hair is human and has a root suitable for DNA. We only state human, animal or non-hair. We do not preform hair or fiber comparisons.
Fiber Comparison, Spandex Fibers Midshaft of human hair
Hairs: