For small items that are less than three feet across, which type of mark should be used?

When documenting small items at a traffic crash investigation scene that are less than three feet across, the correct approach is to utilize a single mark. This designation makes it clear and easy to identify those smaller items in the report and on any diagrams you may create.

Using one mark simplifies representation and reduces potential confusion around the item’s relevance and location, ensuring clarity for anyone reviewing the investigation later on. Smaller items do not necessitate the multiple markings that larger items would require to convey their dimensions adequately, as their size is less complex to denote accurately.

In contrast, two, three, or four marks would generally be reserved for larger items that require additional markers for proper visibility or identification. Hence, one mark is the most effective choice for smaller items, making the documentation process straightforward and efficient.