| Code | Meaning |
|---|---|
| Affirmative | Confirmation (Yes). |
| Negative | Denial (No). |
| ETA: | Estimated Time of Arrival. |
| All units | Alerting all available officers or units. |
| BOLO | Be on the lookout (used for wanted persons or vehicles). |
| Signal 1 | Officer in danger or distress. |
| Proceed | Indicating the officer can continue with the next step. |