How should you document and preserve evidence or samples collected during re-entry?

• A. Only take photos.
• B. Use proper labeling, chain-of-custody documentation, secure storage, and maintain integrity.
• C. Send samples to the lab without labeling.
• D. Store in any container without records.

Answer: (B)

Effective evidence handling relies on labeling, chain-of-custody, secure storage, and preserving integrity to maintain traceability and credibility of samples. Labeling attaches essential identifiers such as case number, date and time, source, and sample type, so every item can be quickly and accurately linked back to its origin. Chain-of-custody documentation records every person who handles the evidence, when they handled it, and what was done, creating an unbroken trail that protects against tampering and supports the reliability of analyses. Secure storage protects the sample from loss, contamination, or degradation by using appropriate containers, seals, and controlled environments. Maintaining integrity means preventing alteration and ensuring proper preservation methods are followed throughout the handling process. Together, these practices ensure the evidence remains usable and defensible during review or analysis.

Photos alone do not provide the physical trail or provenance needed for credible analysis, and sending samples without labeling or without records breaks the traceability, making it impossible to verify provenance or custody. Storing without records similarly removes the ability to prove where the sample came from or who handled it, undermining its evidentiary value.