In crime scene sketches, how should measurements be visually indicated?

In crime scene sketches, visually indicating measurements by drawing lines that show where measurements have been taken from is essential for several reasons. This method allows investigators to clearly illustrate the spatial relationships between objects within the scene and to provide a visual reference that can be easily understood. Lines connecting points of measurement help recreate the scene accurately when reviewing or presenting evidence in court, ensuring that all details are documented transparently.

This approach also enhances the overall clarity of the sketch, as it combines both visual representation and measurable data, allowing for an intuitive understanding of distances and placements within the scene. By utilizing lines, the sketch can convey geometric relationships effectively, which is crucial for the integrity of the investigation.

Other methods such as text annotations or colored differentials might provide important information or clarify certain aspects, but they don't offer the same level of visual connectivity and direct representation that line drawings do. Relying solely on the perimeter does not provide sufficient detail about the specifics within the crime scene, making it an inadequate choice for comprehensive documentation. Thus, indicating measurements through drawn lines is the most effective and informative method for creating a crime scene sketch.