What does "10-9" request from an officer?

In the context of police codes, "10-9" is a request for an officer to repeat a transmission. This is crucial in law enforcement communication, where clarity and understanding are paramount, especially in urgent situations. If an officer does not clearly hear or understand a message, making a request for repetition helps ensure that the information conveyed is accurate and that all parties are on the same page.

The other options represent different codes that serve distinct purposes in communication. For example, a code for a meal break indicates when an officer is unavailable for duty, while "busy" signals that an officer is currently engaged with another matter, and "stop transmitting" requests an officer to cease communication. However, none of these are relevant in the context of what "10-9" specifically signifies.