Which item is an example of demonstrative evidence?

• A. A diagram
• B. A witness's testimony
• C. A firearm
• D. A confession

Answer: (A)

Demonstrative evidence is used to illustrate or clarify information so the jury can understand the facts, rather than being evidence of the facts on its own. A diagram fits this role because it visually represents layouts, distances, or relationships described by witnesses, making the testimony easier to grasp. It acts as a visual aid that accompanies other evidence, not as direct proof by itself.

A firearm, while important physical evidence, is real evidence of the item involved. A confession is a statement—testimonial evidence. A witness’s testimony is direct oral or written statements. Each of those serves as evidence on its own, whereas the diagram serves to illustrate and explain the other evidence.