What identifies the relevant details in a crime scene sketch, such as location of evidence?

A legend is an essential component of a crime scene sketch because it provides key information that helps to interpret the visual representation of the scene. It includes details such as symbols used to indicate the location of evidence, the orientation of the sketch (like compass direction), and other pertinent annotations that clarify what the viewer is seeing. By labeling these elements, the legend ensures that anyone reviewing the sketch can accurately understand where pieces of evidence were located in relation to the overall scene.

This is particularly crucial in crime scene investigations, where the precise positioning of evidence can significantly impact the investigation and help reconstruct events. A well-prepared legend enhances the effectiveness of the sketch and serves as a reliable reference for investigators, attorneys, and jurors during legal proceedings.