What does code 10-91 signify?

• A. Out of radio contact. Still in service
• B. Assigned unit
• C. Vehicle change
• D. Change work area

Answer: (A)

This code communicates radio contact status while the officer remains on duty. It means the officer cannot be reached by radio at the moment, but they are actively working and available for action. The lack of radio contact can happen if the radio is malfunctioning, the officer is in a dead zone or areas with poor signal, or there’s some interference. Because dispatch and other units can’t reach them by the usual channel, alternate contact methods may be used, and everyone should be prepared for a delay in responses or to wait for the officer to re-establish communication. This status helps coordinate responses and prevents miscommunication, signaling that the officer is still on duty but temporarily unreachable by the standard radio network.