Hair and Fiber Evidence

Physical Evidence Bulletin

California Department of Justice, Bureau of Forensic Services

   See also the instructional videos on "Evidence Collection"

Purpose

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.

The Physical Evidence Bulletin (PEB) is a guideline intended for law enforcement agencies to follow in order to submit evidence to BFS Laboratories. Physical Evidence bulletins are not intended to be used in lieu of training in the collection of evidence. Contact your local laboratory and discuss the case prior to submitting the evidence.

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Read the Physical Evidence Bulletin:

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