Demonstrative evidence is a graphics-based method used to facilitate the understanding of the complex information in litigation cases. This information is used by decision-makers to render judgment. Whether the decision maker is a juror, arbitrator or mediator, effective demonstrative evidence is a proven means to facilitate their task of learning, understanding and remembering the complex issues and events surrounding a complex litigation case. 

Demonstrative evidence is used by the testifier to support and supplement their testimony. The term “demonstrative evidence” is used here in the most general sense, and includes both exhibits admitted as probative evidence and those used as illustrative exhibits.