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Police Codes and What They Mean

Police codes are the lifeline of law enforcement communication. They allow officers to quickly and clearly communicate across different teams and departments in high-stress situations. Over time, police codes have become a recognized language in emergency services, used not only by police but also by firefighters, paramedics, and other first responders.

To make it easier to understand police communication, Police Code offers a free online resource to access police codes worldwide. Here, we’ll dive into the most common police codes, the meanings behind them, and the role they play in law enforcement.

What Are Police Codes and Why Are They Used?

Police codes, like 10 codes, signal codes, and scanner codes, were developed to save time and improve clarity. They act as standardized phrases that reduce the need for lengthy explanations, ensuring that messages are conveyed swiftly and accurately. In emergencies, seconds matter, and police codes allow officers to get their message across without confusion.

While some codes are standard across departments, others are unique to specific regions or agencies. Understanding police codes helps not only officers but also civilians who may listen to police scanners to stay informed about local incidents.

Common 10-Codes and Their Meanings

One of the most widely used sets of police codes is the 10-codes, created to enhance communication on police radios. Here, we’ll go over some of the most common 10 codes and their meanings.

What are the Basic 10 Codes Most Commonly Used?

  1. 10-1: Weak Signal – Used to indicate poor reception or trouble with signal quality.

  2. 10-4: Acknowledged – Commonly means “okay” or “understood,” and is one of the best-known codes.

  3. 10-7: Out of Service – The officer is not available, typically when they are taking a break or off-duty.

  4. 10-8: In Service – The officer is back in service and available for calls.

  5. 10-9: Repeat – Used when a message needs to be repeated for clarity.

  6. 10-10: Fight in Progress – Indicates that officers need to respond to a physical altercation.

  7. 10-13: Officer Needs Assistance – A critical code, especially in places like Georgia, where it signals that an officer requires urgent help.

  8. 10-20: Location – Often used to ask an officer’s location (“What’s your 10-20?”).

  9. 10-33: Emergency, Stand By – Used when there is a major emergency, and all units are required to stand by for further instructions.

  10. 10-99: Wanted/Stolen – Used to indicate a suspect or vehicle that is wanted or stolen.

Each of these codes serves as a shortcut, letting officers know exactly what’s happening with just a few words. In high-stress situations, these codes are invaluable for keeping communication efficient and focused.

Detailed Explanation of Police Codes

Police codes are more than just shorthand; they’re a crucial part of the communication that keeps communities safe. Different agencies may use different codes depending on their local needs, but certain codes are widely recognized. These codes help officers avoid misunderstandings, manage emergencies, and coordinate with other departments.

Police Code Structure and Usage

  • 10-Codes: Primarily used by law enforcement to report different types of incidents. For example, 10-23 often means “arrived at the scene.”

  • Signal Codes: These vary significantly by state or region. They cover a wide range of situations, from traffic violations to violent incidents.

  • Response Codes: Many agencies also use numbers to indicate the urgency of a response (e.g., “Code 1” for routine, “Code 3” for an emergency).

In addition to regular 10 codes, agencies may use other numeric codes for specific types of incidents. Knowing these variations can be crucial for understanding police communication.

Police Codes List: Comprehensive Breakdown

Below is a more extensive list of police codes that are commonly used across different departments. Keep in mind that the meaning of these codes may vary depending on the agency or location:

CodeMeaning
10-1Poor Signal
10-2Good Signal
10-3Stop Transmitting
10-4Message Received (Acknowledged)
10-7Out of Service
10-8In Service
10-9Repeat Message
10-10Fight in Progress
10-13Officer Needs Assistance (Georgia)
10-20Location
10-21Call by Telephone
10-23Arrived at the Scene
10-29Check for Wants/Warrants
10-33Emergency Situation
10-50Traffic Accident
10-99Wanted or Stolen Suspect/Vehicle


This list includes a mix of universal and region-specific codes, demonstrating how police departments tailor codes to meet their needs.

Police Codes for Scanners

Police scanners are devices that allow civilians to listen to police and emergency response communications. Police codes are especially useful for scanner listeners, as they allow people to understand what’s happening in their community without needing a police background.

How Scanner Codes Work

When you listen to a police scanner, you’ll hear a combination of 10 codes, signal codes, and local codes used by officers in real-time. Scanners are particularly popular for tracking traffic incidents, crime reports, and public safety alerts.

Using Scanner Codes Responsibly

It’s important to remember that scanner codes are not intended for civilian intervention; they’re for awareness only. Knowing the codes can provide insight into local events but should be used solely for informational purposes.

Commonly Asked Questions About Police Codes

What does 10/20 Mean?

The 10-20 code is widely recognized as the “location” code. Officers use it to ask for each other’s location. For instance:

  • Officer 1: “What’s your 10-20?”

  • Officer 2: “I’m at Main Street and 5th.”

This code is essential in helping officers coordinate, especially during emergencies where knowing each other’s locations is critical.

What is a 10-13 Police Code in Georgia?

In Georgia, the 10-13 code is a high-priority alert that means an officer needs urgent assistance. When a 10-13 is called, it often signifies a dangerous situation where backup is needed immediately. For civilians, understanding the significance of this code can provide awareness of serious situations nearby.

Understanding Police Code Variations by Region

Although many codes are universal, police codes can vary greatly depending on location and agency. For example:

  • In California, a “Code 3” typically means an emergency response with lights and sirens.

  • In New York, “10-30” might indicate a “robbery in progress,” but this code could have a different meaning elsewhere.

Regional variations reflect the unique needs and situations of each area, which is why understanding your local police codes can be useful.

Exploring Police Codes Globally

For those interested in exploring police codes in different countries, Police Code offers a free resource to access codes from around the world. This allows users to see how various regions handle their emergency communication, from 10 codes to specialized signal codes.

The Role of Police Codes in Public Safety

Police codes play a vital role in keeping communities safe by ensuring that officers communicate efficiently. Codes like 10-13 and 10-20 aren’t just phrases – they are tools that help save time and lives.

  1. Enhanced Coordination: Police codes allow different departments and agencies to work together seamlessly.

  2. Safety for Officers: Codes help officers communicate quickly without broadcasting their exact situations in detail, which can be crucial for their safety.

  3. Public Awareness: Understanding police codes enables the public to be more aware of emergencies and respond appropriately.

Police 10-codes are a set of standardized codes used by law enforcement to convey information quickly and efficiently over radios. These codes help officers communicate in high-stress situations without lengthy explanations. For example, “10-4” means “understood,” and “10-20” asks for someone’s location.

The code 10-20 means “location.” It’s often used when one officer is asking another for their whereabouts. For example, if an officer asks, “What’s your 10-20?” they are asking for the other officer’s location.

The code 10-13 means “officer needs assistance.” In many areas, including Georgia, this code is used to indicate that an officer is in danger and requires immediate backup. It is one of the most urgent calls for assistance.

Police scanner codes are used to convey incident types, locations, and responses in a shorthand form over scanners. Civilians can listen to these codes through police scanner devices to stay informed about local incidents. Scanner codes vary by region but often include 10 codes, signal codes, and local response codes.

No, police codes can vary between states, cities, and even departments. While some codes (like 10-4 for “understood”) are commonly used nationwide, many codes have different meanings depending on the region. Agencies adapt codes to meet local needs.

Comprehensive lists of police codes are available on sites like Police Code, which provides free access to police codes used worldwide. These resources cover 10-codes, scanner codes, and signal codes for various regions.

A Code 3 response usually means an emergency that requires lights and sirens. It signifies that an officer is responding quickly to a serious incident.

Conclusion: The Importance of Police Codes

In conclusion, police codes serve as the backbone of law enforcement communication. They allow for quick, concise exchanges of information that can make a significant difference in urgent situations. Whether you’re a law enforcement officer, a scanner enthusiast, or a concerned citizen, understanding police codes can offer valuable insight into the workings of public safety. For more information and to explore codes used in your area or around the world, Police Code provides an accessible resource.