Forensics Quiz on Chapter 3 The Nature of Evidence

Terms in this set (17)

Evidence that cannot be associated with one particular object or person. It can only be put into a group of similar pieces of evidence.

Demonstrative evidence

Evidence that does not arise from the crime itself, but is created to illustrate or explain evidence. Crime scene drawings or photographs are examples.

Anything that will make an issue more or less true than it would be without the evidence. Anything that tends to prove or disprove something at issue.

False negative test

A chemical test that turns out negative even though it should have been positive.

False positive test

A chemical test that turns out positive even though it should have been negative.

Identification of evidence

The process of describing and documenting chemical, biological, and/or physical characteristics of evidence.

Individual evidence

Evidence that can be associated with one particular person or object.

Evidence whose source or ownership is known at the time it is collected.

Evidence is material if it pertains to the particular case that is being tried or investigated.

Negative control

A material, usually a matrix, that would be expected to respond negatively to a particular chemical test.

Nonphysical evidence

Evidence such as eye witness or expert testimony or interpretation of an analytical test.

Physical evidence

Evidence that consists of objects, people, or materials.

Positive control

A material or chemical expected to respond positively to a particularly chemical test.

A piece of evidence that tends to prove or disprove a fact or assertion.

Evidence generated directly from criminal activity. It is found at the crime scene or elsewhere and pertains to the crime.

Evidence that is both material and probative that pertains to the case at hand and tends to prove or disprove some aspect of the case.

Unknown evidence

Evidence whose source or ownership is not known at the time it is discovered.

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