Evidence can be grouped into categories involving the same

Identification, Collection, And Preservation Of Evidence

Evidence can be grouped into categories involving the same color, size, model, brand, caliber, patterns, and other various descriptives. These items of evidence fall into groups of evidence having class characteristics, which display similarities but do not identify them as a match conclusively.

Items that match conclusively indicate that a certain item of evidence made impressions from normal wear or defects that make it unique. Only that item of evidence could have made those impressions or markings or only that item of evidence can be compared to another piece of evidence, showing that the two pieces were one. Those items of evidence have individual characteristics and to the exclusion of all others rule out any other similar item matching them.

• List 3 items of evidence and what characteristics they might have that would be considered class characteristics. Relate why they fall into the category of class characteristics.
• List 3 items of evidence and what characteristics that they might have that would be considered individual characteristics and how they match to the exclusion of all other items of a similar nature.

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