During a search for a diver, what is a critical safety measure that must be taken if using multiple buddy teams?

When conducting a search for a diver using multiple buddy teams, having a way to recall searchers is essential for several reasons. In a search scenario, time is of the essence, and if a situation arises where an immediate recall is necessary—such as adverse conditions, a diver in distress, or a developing emergency—being able to quickly gather all searchers is vital for their safety and the effectiveness of the search.

Implementing a recall system helps ensure that all teams can return to a designated safe area without confusion or delay. This prevents disorganization and minimizes the risk of teams venturing into hazardous conditions without backup.

While remaining in visual contact and having communication devices are important in a search, these measures do not take precedence over the necessity to ensure all divers can be brought back together quickly if needed. Similarly, while carrying emergency oxygen is crucial for dealing with potential dive emergencies, it does not directly address the coordination aspect necessary for multiple teams operating in a search scenario.