What does the police code 10-4 signify?

The police code 10-4 signifies acknowledgment or understanding. This code is widely used in various communication systems among law enforcement as a way to confirm that a message has been received and understood. It serves as an efficient means of communication, especially in environments where brevity is essential.

Using 10-4 allows officers to convey that they have comprehended instructions or information without needing to elaborate, thus maintaining the flow of communication. This clarity is particularly important in emergency situations where clear and concise exchanges of information are critical for the safety of officers and the public.

The other choices, while they represent different concepts in police codes, do not capture the essence of 10-4. Urgent assistance needed, burglary, and location comprise codes that pertain to specific situations or requests rather than general acknowledgment.