What is a reasonable standard for documenting evidence on scene?

• A. Documenting is unnecessary if evidence is digital.
• B. Labeling is optional.
• C. Preserve integrity, avoid contamination, and maintain a clear chain of custody; label and photograph items when possible.
• D. Photographs should be avoided because they contaminate evidence.

Answer: (C)

Documenting evidence on scene relies on keeping its integrity intact, avoiding contamination, and maintaining a clear chain of custody, while labeling items and photographing them whenever possible. This approach ensures evidence can be trusted from collection through analysis, because you have a documented record of where each item came from, what it looked like at the scene, and who handled it and when. Photographs capture context and conditions before any movement or alteration, providing a visual reference that complements notes and labels. Proper labeling ensures items aren’t misidentified or mixed up as they move through the investigation. Even digital evidence requires the same discipline—recording provenance, preserving original data, and controlling access to prevent tampering. Contamination is minimized through appropriate handling, use of gloves and clean packaging, and careful scene management, not by skipping documentation. So, preserving integrity, preventing contamination, and maintaining a solid chain of custody, with labeling and photographing when possible, is the right standard.