What should officers ensure about physical evidence during a search?

The correct option emphasizes the importance of properly packaging physical evidence to avoid contamination. When officers collect evidence from a crime scene, it is crucial to maintain the integrity of that evidence. Contamination can occur through exposure to various elements, including environmental factors or human handling, which may alter or destroy critical information linked to a case.

Proper packaging involves using appropriate materials and methods that protect the evidence from damage or contamination. For example, using specific types of containers for biological evidence can prevent degradation. By ensuring evidence is properly packaged, officers uphold the integrity of the investigation, allowing it to stand up in court should it be needed during legal proceedings. This process forms an essential part of the chain of custody, which documents the handling and storage of evidence to ensure it remains admissible.

The other options do not align with best practices in evidence collection. Not collecting small evidence could lead to losing important information, discussing evidence only in reports disregards the physical documentation necessary for a thorough investigation, and solely photographing evidence without collecting it may leave the case lacking tangible proof for judicial review.