Representations such as photographs, sketches, diagrams, casts, and models are known as what type of evidence?

Demonstrative physical evidence refers to representations that help illustrate or clarify an aspect of a case by providing a visual perspective. This type of evidence is not the original item or direct evidence itself but rather aids in understanding the context and details surrounding the physical evidence or events. Photographs, sketches, diagrams, casts, and models serve to promote comprehension, allowing jurors, witnesses, and others involved in a case to visualize complex information, enhancing the narrative being presented.

While physical evidence includes actual items or objects found at a crime scene, demonstrative evidence does not consist of original objects but is instead used as a representation to support claims made during legal proceedings. Testimonial evidence pertains to oral or written statements made by witnesses. Documentary evidence refers specifically to documents that provide information, such as contracts or written reports. Thus, the unique characteristic of demonstrative physical evidence is its role in visually representing and summarizing evidence, which is why this answer is correct in the context of the question.