1.24 Demonstrative Evidence is a type of evidence presented during legal proceedings which is used to illustrate or demonstrate an idea, fact, or theory. It can take a variety of forms, such as photographs, maps, diagrams, videos, audio recordings, and computer simulations. Demonstrative evidence can be used to explain a concept or event that would otherwise be difficult to explain with words alone. It is typically used to support other types of evidence, such as expert witness testimony or documentary evidence. The types of demonstrative evidence can range from simple physical objects to complex computer simulations.