In what order should evidence generally be collected at a crime scene?

The correct order for collecting evidence at a crime scene is important to maintain the integrity of the evidence and to avoid contamination. In this case, the recommended sequence of collecting fingerprints, trace evidence, and firearms is logical and aligns with best practices in forensic investigations.

Starting with fingerprints is crucial because they can be easily smudged or destroyed if other evidence is collected first. Fingerprints are often critical for establishing a suspect's presence at the scene, and collecting them first minimizes the risk of interference by the collection of other, more invasive types of evidence.

Following fingerprints, collecting trace evidence helps to ensure that any small particles or residues that could be crucial to the investigation are preserved. Trace evidence can include hair, fibers, or other materials that can link a suspect to the scene or a victim. This type of evidence can also be compromised if collected later, as it is often delicate and easily lost or contaminated.

Lastly, firearms should be collected; they are typically larger and more evident at a crime scene. Collecting firearms last minimizes the potential for disturbing other evidence in the area. Firearms often require more specialized handling, such as ensuring the weapon is safe and potentially collecting ballistics information, which is usually more straightforward once other forensic details have been secured.

Thus