General Trace
Trace Evidence Analysis
About general trace evidence
Sometimes a piece of evidence at a crime scene does not fall into the categories of paint, fibers, or fire debris. This "unknown" material—such as a black powder or a smear on a tool—may be the key to solving a case.
The UBFS is equipped to help in these situations. We use the same methodologies as our other trace disciplines to characterize, identify, and compare these unknown trace materials to a known sample.
Submitting a case
General trace cases and samples are accepted with prior approval from the Chemistry section manager.
Microscopic view of cat hair
Microscopic view of linen fiber
