Which statement best describes the relationship between field sketches and photographs at a crash scene?

• A. Field sketches replace photographs
• B. Field sketches supplement photographs by showing spatial relationships
• C. Field sketches are unnecessary if photos exist
• D. Field sketches are used only for long-term records

Answer: (B)

Field sketches provide a diagrammatic view that clarifies where things sit in space relative to each other, which photos alone often can’t fully convey. Photos capture details, textures, and appearance from specific angles, but perspective can distort distance and the overall layout of the scene. A field sketch translates those details into a scaled, orientated plan that shows exact relationships—where vehicles, evidence markers, road features, and impact points lie in relation to one another. This makes it easier to understand the sequence of events and to reconstruct the crash later, especially when evidence has been moved or conditions have changed. So field sketches complement photographs rather than replace them, and they aren’t merely for long-term records or unnecessary if photos exist.