What type of evidence should officers collect at a traffic accident scene?

Officers should collect both witness statements and evidence of road conditions at a traffic accident scene because each component provides critical context for understanding how the accident occurred. Witness statements can offer first-hand accounts of the incident, including details about the actions of the drivers leading up to the accident, weather conditions, and any traffic signals involved. These testimonies can help clarify discrepancies in the drivers' narratives.

Collecting evidence of road conditions is equally important. Factors such as pavement quality, road obstructions, signage visibility, and lighting conditions can significantly influence accident circumstances. For example, if the road was wet, icy, or had a pothole, this information can help determine liability or contributing factors to the crash.

In contrast, focusing only on photographs of the vehicles or limiting the evidence collection to one type, like just road conditions, would miss vital aspects that contribute to a comprehensive understanding of the accident. Therefore, a holistic approach that includes multiple types of evidence is crucial for effective accident investigation.