When packaging dry items for evidence, what material should be used?

When packaging dry items for evidence, paper is the preferred material due to its ability to allow items to breathe, which helps to prevent moisture buildup. Using paper packaging helps in maintaining the integrity of the evidence, especially for items that could be affected by condensation or moisture that can occur in plastic or glass containers. Additionally, paper is non-reactive and will not introduce any contaminants to the evidence, which is crucial for maintaining chain of custody and ensuring the sample remains in its original state for analysis. This makes it particularly suitable for dry items, as they require protection but also need to avoid trapping moisture, which plastic might do.

Other materials like plastic bags, while useful for certain types of evidence, can create a sealed environment that may lead to condensation. Wooden boxes generally do not provide adequate sealing or protection for small items, and glass containers, while they offer some protection, do not allow for breathability, which can be detrimental for dry items. Therefore, using paper is essential for ensuring the best preservation conditions for dry evidence.