Why is computer-generated documentation usually considered unreliable evidence?

A.
It is primary evidence.

B.
It is too difficult to detect prior modifications.

C.
It is corroborative evidence.

D.
It is not covered under criminal law, but it is covered under civil law.

Explanation:
B: It can be very difficult to determine if computer-generated material has been modified before it is presented in court. Since this type of evidence can be altered without being detected, the court cannot put a lot of weight on this evidence. Many times, computer-generated evidence is considered hearsay in that there is no firsthand proof backing it up.