What is the protocol for notifying dispatch that the officer has arrived at the location of an incident?

Notifying dispatch that an officer has arrived at the location of an incident is crucial for operational efficiency and communication among units. The phrase "Arrived on Scene" clearly conveys that the officer is physically present at the designated location where the incident is occurring. This confirmation allows dispatch to update their records and ensures that other units are aware of the officer's status, which is essential for coordinating resources and responding to further developments at the scene.

In contrast, the other options do not accurately communicate the same level of specificity regarding the officer's presence at the incident location. For example, "Assignment Complete" suggests that the officer has finished their responsibilities, which may not be the case if they are still involved in the situation. "Regroup at Headquarters" implies a need for returning to a central location rather than being active at the incident site. "Situation Under Control" may be premature at the moment of arrival, as the full assessment of the incident has not yet been completed. Thus, using "Arrived on Scene" maintains clarity in communication and aligns with standard procedures in law enforcement operations.