Which of the following signals indicates theft?

Signal 400 is designated specifically for theft incidents. This is used by law enforcement agencies to communicate the occurrence of a theft, facilitating a quicker response and ensuring other units are aware of the situation. Identifying and categorizing crime types allows for more effective dispatching of resources and provides critical information to responding officers.

Other signals have different purposes; for example, certain signals may relate to different types of emergencies or offenses. It's important for law enforcement to have standardized codes to ensure clarity and efficiency in communication. Knowing the specific signal for theft helps officers to assess the situation as they respond to it.