When photographing an accident scene, a familiar object such as a ruler, coin, or finger is placed in the photo for what reason?

Question

Quizplus · Accepted Answer

Placing a familiar object such as a ruler, coin, or finger in the photo allows the viewer to gain perspective on the size and distance of objects in the scene. This can help with analyzing the evidence and determining the cause of the accident. It can also provide a reference point for further investigation and authentication of the evidence.

When Photographing an Accident Scene, a Familiar Object Such as a Ruler