This type of supporting evidence is used to help prove an idea or a point, however it cannot stand on its own, it
is used as a supplementary tool to help prove a primary piece of evidence. What is the name of this type of
evidence?

A.
Circumstantial evidence

B.
Corroborative evidence

C.
Opinion evidence

D.
Secondary evidence

Explanation:
Corroborative evidence is supporting evidence used to help prove an idea or point. It cannot stand its own.
Incorrect Answers:
A: Circumstantial evidence can prove an intermediate fact, but not a direct fact by itself. The intermediate fact
can then be used to deduce or assume the existence of another fact. This type of fact is used so the judge or
jury will logically assume the existence of a primary fact.
C: Opinion evidence would be the opinion of a witness, but the opinion rule dictates that the witness must testify
to only the facts of the issue and not her opinion of the facts.
D: Secondary evidence is not viewed as reliable and strong in proving innocence or guilt (or liability in civil
cases) when compared to best evidence. Oral evidence, such as a witness’s testimony, and copies of original
documents are placed in the secondary evidence category.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 1055