How should evidence be collected during an investigation?

Evidence collection is a critical component of fire investigations, and the methods used can significantly impact the integrity and admissibility of the evidence in court. Choosing new, unused, unlined metal cans for collecting evidence is considered best practice for several reasons.

First, metal cans, especially those that are unlined and new, do not introduce any contaminants that could alter the evidence collected, such as trace materials or residues. Unlike plastic or containers with pre-existing coatings, metal cans ensure that the evidence remains untainted, which is vital for maintaining its integrity.

Second, these cans can provide a secure and closed environment for the evidence, protecting it from environmental factors like moisture, which could compromise the material's condition. Proper sealing is essential to prevent evaporation or degradation of volatile substances that may be critical in a fire investigation.

Lastly, storing evidence in metal cans adheres to legal standards and protocols for evidence handling, ensuring that the chain of custody remains intact. This is crucial for preserving the evidentiary value of the collected items, as any breach can lead to questions about its reliability in court.

The other options do not meet the same standards. Decorative containers may not provide the necessary protection or cleanliness for evidence, while using any available packaging could lead to contamination or degradation