Final answer:
A watchstander can conduct visual and radar searches as well as database searches in different contexts.
Step-by-step explanation:
A watchstander can conduct various types of searches depending on their role and the specific context. For example, in the context of maritime operations, a watchstander can conduct a visual search of the surrounding area for any signs of distress or potential hazards. They can also conduct radar searches to track the movement of vessels and identify any potential threats. Additionally, watchstanders may conduct database searches to retrieve specific information or conduct historical research.