What is the difference between 'confirmed' and 'unconfirmed' information on a radio?

• A. Unconfirmed means verified by evidence or another unit; confirmed means awaiting verification.
• B. Confirming information is always instantaneous.
• C. Confirmed means verified only by the unit's own observation; unconfirmed means uncertain.
• D. Confirmed means documented in a log; unconfirmed means not logged yet.

Answer: (D)

In radio practice, keeping track of information by its verification and documentation status is crucial. The idea is that once information is checked and confirmed, it becomes part of the official record you can rely on during an incident. When something is unconfirmed, it hasn’t been verified or entered into the incident log yet, so it should be treated as preliminary and requiring follow-up before acting on it.

That’s why the best choice is that confirmed means documented in a log, and unconfirmed means not logged yet. Logging the information marks it as verified and accessible to all units and supervisors, while unlogged information remains tentative and not yet suitable as a basis for decisions.

For context, other statements aren’t accurate reflections of how this status works. Confirmation isn’t guaranteed to be instantaneous, since it may require corroboration or evidence. Verification isn’t restricted to a unit’s own observation, as confirmation can come from multiple sources. And “documented in a log” is the practical marker that an item has moved from tentative to an official, trackable status.