Which code signifies a "Return to Station"?

The code that signifies a "Return to Station" is indeed the correct choice. In police radio communication, specific codes are used to convey messages succinctly and clearly. The "10" codes, also known as ten signals, were developed to standardize police communication.

In this context, the correct code for "Return to Station" is commonly understood as a way for officers to indicate they are returning to their base or headquarters for various reasons, such as completing a shift, regrouping, or for operational purposes.

The other codes mentioned have different meanings that are not related to returning to the station. For clarity, "10-20" usually refers to an officer's location, "10-10" denotes out of service or off duty, and "10-15" is often associated with a subject in custody. Understanding the meanings of these codes helps in effective communication among law enforcement personnel.