What action does code 10-22 instruct?

Code 10-22 specifically instructs officers to disregard the last message received. This code is essential in law enforcement communication, allowing personnel to quickly communicate that a previous directive or piece of information is no longer relevant or needs to be ignored, which can help prevent confusion and ensure that all personnel are acting on the most current instructions.

In the context of police operations, swift and clear communication is vital, and using designated codes helps maintain brevity and clarity during high-pressure situations. By indicating that the last message should not be acted upon, it allows officers to focus on accurate and timely information relevant to their duties. This ensures that responses are coordinated and effective in real-time situations.

The other choices involve specific situations or commands that do not pertain to disregarding previous messages, highlighting how distinct and clear the communication is when using the appropriate 10 codes.