Understanding Chicago Police Codes: Signals, Ten Codes, and Beyond
Understanding Chicago Police Codes: Signals, Ten Codes, and Beyond
Chicago, one of the largest cities in the United States, operates with a complex network of police codes and radio signals. These codes serve to ensure clear and efficient communication among law enforcement personnel, facilitating rapid response and coordination during emergencies. This article will explore the common Chicago police codes, signal codes, and the specific codes used for clearance, providing a comprehensive guide for those interested in the inner workings of the Chicago Police Department (CPD).
Common Chicago Police Codes
Compared to other jurisdictions, the Chicago Police Department (CPD) uses a mix of plain English phrases and abbreviated codes to convey information quickly and accurately. Here’s a breakdown of the most commonly used Chicago police codes:
10-Code System
The 10-code system is well-known among CPD officers and dispatchers, as it allows them to communicate easily with each other. Each code is briefly described:
10-1: Unable to Copy Change Location 10-2: Signal Good 10-3: Stop Transmitting 10-4: Acknowledgment – The term “10-4” is commonly used to acknowledge a message, similar to saying “roger” or “okay” in modern language. 10-7: Out of Service 10-8: In Service 10-9: Repeat 10-20: Location – Typically used to request the location of another officer or to provide one’s own location. 10-28: Vehicle Registration Check 10-29: Check for Warrants 10-50: Accident Fender Bender – Minor Auto Accident 10-51: Wrecker Needed – Towed Vehicle 10-99: Wanted/Stolen IndicatedThese codes serve as standardized phrases that officers and dispatchers use to communicate specific situations or requests. The use of these codes helps to keep the channel clear and ensures that messages are conveyed quickly and efficiently.
Signal Codes
Signal codes are used to convey critical information in a more visual manner, often through flashing lights or hand signals. Here are some of the signals commonly used by the Chicago Police Department:
Signal 1: Request for Assistance Signal 2: Emergency Assistance Required Signal 5: Shooting Signal 10: Suspicious Person or VehicleThese signals provide immediate context and urgency, ensuring that responding officers are fully aware of the situation at hand.
CPD Clearance Codes
When a matter has been handled and no formal report is needed, CPD officers may use specific clearance codes to indicate that they are ready for a new assignment. These codes are often entered into the dispatch computer or spoken as part of a radio transmission. For example:
2F or 2 Frank – This code indicates that the officer is cleared for a new assignment and is ready to move on to the next job.You can find more information about these codes here.
Conclusion
Understanding Chicago Police Codes is essential for anyone who works with or frequently interacts with the CPD. These codes not only improve communication but also streamline the handling of emergencies and routine calls. If you have any specific questions or need additional information, feel free to ask.