Which sketch method shows all the times in a scene as one-dimensional or flat, commonly used when evidence is indoors?

• A. Coordinate method
• B. Triangulation method
• C. Cross projection method
• D. Perspective method

Answer: (C)

The cross projection method is designed to produce a flat, two‑dimensional depiction by projecting scene features onto perpendicular reference lines, so everything sits on one plane. This keeps the drawing simple and planar, which is especially useful indoors where walls, corners, and fixed references define the space.

Why this works well indoors: with rooms, you can anchor the layout to the walls and corners, and distances can be plotted along two axes on a single sheet. That makes it easy to record exact locations of evidence without worrying about perspective distortions, providing a clear, quick reconstruction of how items relate to each other and to the room.

In contrast, perspective shows depth and a sense of three-dimensionality, which isn’t as efficient for documenting precise placements in a confined indoor scene, while coordinate and triangulation methods can be more complex or rely on additional reference points. The cross projection approach stays flat and straightforward, matching the need to map indoor evidence accurately on one plane.