| Code | Meaning |
|---|---|
| Officer needs assistance: | Code indicating distress or emergency backup. |
| All units: | Alert for all available units. |
| BOLO: | Be On the Lookout (for suspects or vehicles). |
| ETA: | Estimated Time of Arrival. |
| Negative: | No, not understood or denial. |
| Affirmative: | Yes, understood. |