What should be done before attempting to remove shot material from a scene?

Prior to removing any shot material from a crime scene, it is essential to take measurements and document the scene. This process is critical because it captures the condition of the scene and the relationship between various pieces of evidence before any alteration occurs. Documentation typically includes taking photographs, making sketches, and recording measurements that will allow for accurate reconstruction of the scene later on.

By establishing this baseline, investigators can ensure that any evidence collected can be reliably contextualized within the overall layout of the crime scene. This is vital not only for the integrity of the investigation but also for presenting evidence in legal proceedings. Ensuring thorough documentation helps preserve the chain of custody and supports the credibility of the investigation. Ensuring that all aspects of the scene are recorded helps to maintain the evidentiary value of everything present, including shot material, which may have significant implications for the investigation's findings.