A: Trial exhibits are used to make your case come to life during a trial. Documents, which can be boring, are enlarged to show to a jury exactly what was done, so the jury can actually see for themselves what we are talking about.
An exhibit can be a model of part of your body that an expert will use to show what happens when a surgical procedure is performed. An exhibit can be an illustration or computer reenactment to give the jury an understanding of what happened.
Anytime words are used to explain something by witness, it is always helpful to show a jury a real example of what we are talking about. It is more interesting when the jury actually gets to see and learn from the illustration, diagram or enlargement.