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Criminal Justice Trace Evidence the Term Paper
That means they have to know how to locate evidence that can be traced, but they also need to know how to test it and preserve it so it can be used at a later date. They have to guard against contamination, and make sure they collect enough evidence to tie it to a perpetrator.
Ultimately, investigators at a crime scene have one purpose and goal, to solve the crime and find the perpetrator. Trace evidence is a key ingredient in solving the crime, and investigators know this, so they are always on the lookout for any type of evidence they can find. Sometimes investigations take years, but with the right crime scene collection and preservation, the trace evidence left behind can lead to conviction, and that is the ultimate purpose of the time and energy that goes into collecting trace evidence.
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