Which of the following is NOT a type of evidence container?

Cardboard boxes are not considered a recommended type of evidence container for preserving physical evidence, particularly in fire investigations. While they may seem practical for storage, cardboard is permeable and can allow contaminants such as moisture and gases to invade the contained material. This can lead to degradation of evidence, especially regarding samples that need to be preserved in a controlled environment, such as fire debris or traces of accelerants.

In contrast, metal cans, glass jars, and common plastic bags all provide more appropriate containment options for specific types of evidence. Metal cans are often used for volatile substances, as they are airtight and protect evidence from environmental factors. Glass jars can also serve a similar purpose, particularly when it comes to maintaining the integrity of evidence that should not have contact with air or moisture. Common plastic bags, while more suitable for certain scenarios, are generally used for items that do not require an air-tight seal but should still be protected from contamination. Each of these containers has distinct advantages that support the preservation and integrity of collected evidence in fire investigations.