Which of the following are common materials used for evidence packaging?

The use of paper, cardboard boxes, plastic, and metal cans as common materials for evidence packaging is essential in law enforcement and forensic practices. Each of these materials serves a specific purpose in securing and preserving evidence collected at a crime scene.

Paper is often used for packaging smaller items like clothing, fibers, or pieces of evidence that can be compromised by moisture or contamination. It allows the items inside to breathe, thus minimizing the risk of mold growth or degradation over time. Similarly, cardboard boxes provide sturdy protection for larger items while preventing damage during transportation and storage.

Plastic packaging is useful when moisture is a concern. It is commonly employed for items that could deteriorate if exposed to air and humidity, such as liquids or wet samples. Plastic bags and containers keep the evidence intact and free from contaminants.

Metal cans offer a robust option for items like firearms or other evidence that needs to be preserved securely. They protect against crushing and environmental effects, ensuring the integrity of the evidence until it can be analyzed.

These materials are chosen based on their properties that help maintain the chain of custody and the integrity of the evidence, making them a crucial part of the evidence collection process in law enforcement.