What label should a police officer use to identify a sketch that is not professionally prepared?

The appropriate label for a sketch that is not professionally prepared is "Not drawn to scale." This term specifically highlights that the proportions and measurements represented in the sketch do not accurately reflect real-world dimensions. Professional sketches are often drawn to scale to ensure that distances and sizes are represented correctly, allowing investigators and others to understand the spatial relationships and layouts of a scene accurately.

When a sketch is not drawn to scale, it can lead to misunderstandings or misrepresentations of the actual scene, potentially affecting investigations or legal proceedings. This distinction is critical in criminal justice, where visual evidence must provide clear and reliable information to support case development and understanding.

Other labels, while they may address different aspects of a sketch, do not convey the critical concept of scale. For instance, being "not detailed correctly" might refer to a lack of comprehensive features, while "not color coded" speaks to the absence of visual aids but doesn't affect overall accuracy. Similarly, "not properly labeled" could refer to missing titles or descriptions but does not address the fundamental issue of proportionality that impacts the sketch's utility in a legal context.