Question from a student:

What is the purpose of physical evidence? I mean, I know I need to collect physical evidence, but why?

Before I answer, let's define what physical evidence is all about. What is physical evidence? Physical evidence is any and all objects that can establish that a crime has been committed or can provide a link between a crime and its victim or perpetrator.

But what should physical evidence be collected? What is the purpose of physical evidence? Physical evidence aids in the solution of a case, provides an element of the crime, such as fear or force, and proves a theory in the case. Physical evidence will either prove or disprove statements of what may or may not have happened.

Physical evidence also places suspect in contact with a victim or victims, establish identification persons involved, can exonerate the innocent, corroborate testimony, and of course can help aid during interviews and interrogations.

Physical evidence is usually identified, such as controlled substance, or compared, as in the comparison of shattered glass found a different locations.

So there you have it! The what, why, and how of physical evidence!

Oh, for more info about the different types of evidence, please enroll in our FREE Forensic Evidence course. This online course will break down the different classifications of forensic evidence and will further increase your forensic training.

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