What action does "10-3" refer to in police communication?

The code "10-3" in police communication is used to instruct personnel to "stop transmitting." This means that officers are being advised to cease their communication, often to prevent interference with important or sensitive information being relayed on the radio system. This type of communication is crucial during high-stakes situations where clear and uninterrupted communication is necessary for safety and operational effectiveness.

In contrast, other options reference different concepts. For instance, "in service" indicates that an officer is actively on duty and available for calls. "Meal Break" denotes that an officer is taking a break for a meal and may not be immediately available for responses. "Fight in progress" is a call for assistance in the case of an active conflict occurring, which would require a different response and readiness from officers in the field. Thus, understanding the specific meanings of these codes is essential for effective communication and coordination during police operations.