visual (example: fingerprints, tool marks) Microscopic A microscopic analysis indicates that evidence must be observed with the use of some type of microscope (example: hairs, fibers) Chemical If an article of evidence must be subjected to any type of chemical procedure to be best utilized, that article requires chemical analysis (example: DNA typing, drug screening) Common Types of Physical Evidence Documents. Any document, hand- or typewritten, will be submitted so that authenticity and source…
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