In his blog Witness Perspective Photography, photography expert witness George Reis, principal at Imaging Forensics, writes:
What did the witness to a crime see from 40 feet away at 3:00 a.m.? What did the driver see when approaching the intersection at sunset? What could the injured party see in the movie theater before tripping on a stair?
Witness perspective photography involves returning to the scene under similar lighting conditions, observing the scene, and photographically recording it so that the trier of fact can see the lighting conditions, perspective, size of objects, etc. from the witness’ point of view. As the photographer, I document, in detail, what I can can see – how much detail there is, what objects are too dark to discern, which are too light, etc.Then I photograph the scene to represent what I could see. I make prints that represent what I was able to see at the scene, under the given lighting conditions, using the proper focal length, print size, and print viewing distance so that the viewer will see all objects at the same size, brightness, contrast, and color as I did when at the scene.
Read more: George Reis.