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Abstract
Many crimes involve direct physical contact between a victim, suspect, and/or their surroundings. Whenever such contact occurs, there is frequently an inadvertent transfer of evidence. This evidence transfer is usually hairs and fibers. This type of evidence, which can be microscopic in form, may often be overlooked by investigating officers because it is not easily observed. Hair and other animal fibres can provide vital clues and information after species identification, about the chemical composition, colour treatment, geographical region, growth rate, age, colour and feeding habits including different cosmetic effects.