When measuring for a crime scene sketch, measurements should be taken from what?

When measuring for a crime scene sketch, it is essential to take measurements from fixed points. Fixed points serve as stable reference locations that do not change throughout the investigation. These points provide a consistent framework from which distances and angles can be accurately assessed, ensuring the sketch reflects precise spatial relationships within the scene.

Using fixed points allows investigators to create a reliable and detailed representation of the crime scene, which can be critically important for later analysis, court presentations, and overall documentation of evidence. This method helps maintain the integrity of the measurements, particularly when the scene may be tampered with or altered before it is documented.