Question

Witnesses are often called in both civil and criminal cases to testify about their knowledge of events related to the case. Why is the way the witnesses gained their knowledge important? How does it affect the interpretation of events presented to the jury?

Answer 1

because the witnesses had different viewpoints so they might have seen different things..
If for example the witness is somehow related to the victim, his/her point of view might have been compromised and couldn't be used

hope this helps