Which factor best enhances the credibility of a witness?

• A. A witness who refuses to answer questions.
• B. A witness whose statements change each time.
• C. Consistent statements across interviews.
• D. A witness with no independent observations.

Answer: (C)

When evaluating witness credibility, the strongest indicator is a stable, coherent account that remains consistent across interviews. If a witness repeats similar details—what they saw, when it happened, and the sequence of events—over multiple conversations, it suggests reliable memory and honesty. This consistency makes it harder to argue that the testimony was fabricating or altered, which undermines credibility.

Refusing to answer questions signals evasiveness and can undermine trust in what they say. If a witness changes details from one interview to the next, it raises doubts about memory or honesty and weakens credibility. And having no independent observations means the witness did not witness the event firsthand, so their testimony doesn’t contribute to establishing credibility about what occurred.

So, consistency across interviews best enhances a witness’s credibility because it demonstrates reliable memory and straightforward, steady reporting of the events.