How is "Off Duty" denoted in police codes?

"Off Duty" is denoted by the code 10-10. This code is part of a system of ten-codes or ten signals used by law enforcement to convey specific meanings succinctly over communication channels. The designation of "10-10" helps officers quickly communicate their status to each other, indicating they are not currently on active duty or responding to calls.

The other codes serve different purposes in the ten-code system. For instance, "10-4" typically means "acknowledged" or "received," and is used when confirming receipt of a message. "10-5" is often used to denote a request for information or a status update. Meanwhile, "10-15" usually refers to an arrest or a person in custody. Understanding these unique meanings helps maintain clear and effective communication among law enforcement personnel.