Which of the following codes is used to indicate delivery of a message?

The code that indicates the delivery of a message is 10-39. In law enforcement communication, a specific set of codes, known as ten-codes or ten signals, are used to convey information succinctly over radio or radio-like communication systems.

10-39 specifically pertains to the delivery of a message, meaning that if an officer communicates this code, it signifies that they are confirming that a message has been successfully delivered. This is crucial for clarity in communication within law enforcement operations, as it helps officers to confirm actions taken without unnecessary verbal elaboration.

In contrast, the other codes serve different purposes within the communication framework. Understanding the meanings of these codes is essential for effective communication and coordination among law enforcement personnel.