Which action helps prevent contamination of evidence during handling?

• A. Labeling and packaging to preserve integrity and track handling.
• B. Exposing evidence to sunlight for quick drying.
• C. Handling without gloves.
• D. Inspecting but not packaging.

Answer: (A)

Maintaining evidence integrity and the chain of custody is the goal when handling evidence. Labeling and packaging accomplish this by preserving the item’s physical condition and creating a clear, traceable record of handling. Proper labeling provides essential details like case number, item description, date and time of collection, and the collector’s identity, so everyone knows exactly what the item is and where it came from. Packaging, especially in appropriate containers sealed with tamper-evident seals, protects the evidence from environmental damage and prevents cross-contamination or loss, while also documenting who handled it and when. Together, labeling and packaging keep changes to the item to a minimum and support admissibility in court by showing a continuous, verifiable chain of custody.

Exposing evidence to sunlight can alter or degrade it, undermining its usefulness. Handling without gloves can transfer oils, skin cells, and fibers that contaminate the item. Inspecting but not packaging leaves the evidence exposed and untracked, increasing the risk of contamination or misplacement.