What are the two types of drawings used in crime scene documentation?

The correct response highlights the two primary types of drawings utilized in crime scene documentation: floor-plan (or bird's-eye) and exploded (or cross projection) diagrams. Floor-plan drawings are essential for providing a top-down view of the crime scene, illustrating the spatial relationships among various elements, such as physical layout, position of evidence, and potential points of entry or exit. This type of drawing is invaluable for investigators and court presentations, as it succinctly captures key information about the scene at a glance.

On the other hand, exploded or cross projection drawings offer a unique perspective by displaying the vertical and horizontal planes together. This approach allows investigators to depict the arrangement of items alongside their heights, enabling them to visualize three-dimensional aspects of the scene. This type of drawing is particularly advantageous when evidence is present at different levels, such as on shelves or in multi-story locations.

Together, these drawing methods provide a comprehensive understanding of the crime scene's layout and evidence positioning, which is crucial for reconstruction and analysis in medicolegal investigations.