Japan is one of the safest countries in the world. A big part of this safety comes from the strong police system and the clear communication they use every day. One way Japanese police stay organized is through a special system of police codes. These codes help officers understand each other quickly and work efficiently.

In this guide, you will learn everything about the Japanese police code list—what it means, how it works, and where you can find the complete and updated list for free.

Police Code offers all these Japanese police codes completely free. You can explore them anytime without paying or signing up. This article will give you a simple explanation so that anyone—student, traveler, researcher, or just a curious mind—can understand it clearly.

What Are Police Codes?

Police codes are short numbers or phrases used by law enforcement officers to communicate important information quickly. Instead of saying a full sentence, they use a code.

For example:

• In English-speaking countries, “10-4” means “Okay” or “Message received.”

• In Japan, codes are numeric and based on local law enforcement systems.

These codes help in keeping police communication short, clear, and secure.

Why Do Japanese Police Use Codes?

Japan is known for efficiency and order. The police also follow this principle. Using police codes helps them:

• Save time during emergencies

• Keep communication private

• Avoid confusion

• Keep radio traffic clear and organized
  
  

Instead of talking in long sentences on the radio, a police officer can say a number like “110” or “204” and the whole team understands what it means.

Examples of Common Japanese Police Codes

Here are some frequently used Japanese police codes that are helpful to know:

These codes help Japanese police officers act fast and maintain control.

Categories of Japanese Police Codes

Japanese police codes are divided into several categories based on the type of offense or emergency. Let’s explore these categories to understand how the system works.

1. Emergency Response Codes

These are used in dangerous situations that require immediate police action.

Examples:

• 110 – Police emergency call

• 111 – Officer needs assistance

• 112 – High-speed chase
  
  

2. Crime Codes

Used when crimes like theft, murder, or fraud happen.

Examples:

• 187 – Homicide

• 211 – Armed robbery

• 240 – Assault

• 459 – Burglary
  
  

3. Traffic and Vehicle Codes

Related to vehicle accidents, reckless driving, or license issues.

Examples:

• 204 – Reckless driving

• 231 – Driving under the influence

• 602 – Illegal parking

• 310 – Hit and run
  
  

4. Drug and Substance Abuse Codes

These codes are used for drug-related crimes.

Examples:

• 390 – Drug possession

• 391 – Drug trafficking

• 392 – Use of illegal drugs
  
  

5. Public Order and Safety Codes

Used to report disorderly conduct or public danger.

Examples:

• 415 – Public disturbance

• 417 – Person with a weapon

• 503 – Protest or demonstration
  
  

6. Juvenile Codes

These involve minors or underage offenders.

Examples:

• 601 – Minor violation

• 602 – Truancy or runaway youth

• 603 – Underage drinking
  
  

Where to Find the Complete Police Code List of Japan

The full list of Japanese police codes is freely available at Police Code. You do not need any registration, payment, or subscription.

The codes are neatly organized in categories so you can search by topic or number. Whether you’re looking for traffic offenses or emergency call signs, it’s all available in one place.

Police Code is also useful if you’re:

• A student working on a law project

• A traveler planning a trip to Japan

• A content creator writing about safety

• Or just someone who wants to understand how law enforcement works in Japan
  
  

How Japanese Police Use These Codes in Daily Work

Here’s a typical example of how a Japanese police officer may use codes during duty:

Situation: A police officer sees a driver breaking the signal and driving recklessly.

Radio communication: “Control, this is Unit 3. Reporting Code 204 at Shibuya Crossing, license plate Tokyo 51-92.”

Instead of saying “reckless driver at Shibuya Crossing,” they just say Code 204. This helps other officers nearby understand instantly and support if needed.

Benefits of Using Japanese Police Codes

Let’s break down the main benefits:

1. Fast Communication

Every second counts in an emergency. Codes allow officers to respond fast.

2. Clear Understanding

Codes reduce confusion, especially when different teams or departments are involved.

3. Security and Privacy

Using codes makes it harder for the public or criminals to understand sensitive information.

4. International Training

Many global police training centers now include Japanese police codes in cross-border cooperation exercises.

Are Japanese Police Codes the Same as Other Countries?

No, Japanese police codes are unique to Japan. While some numbers might seem similar (like “110” for emergencies), the meanings of codes are not universal.

For example:

• In the US, Code 187 is also homicide.

• In Japan, Code 187 also refers to homicide.
  
  

But not all codes are the same. That’s why it’s important to use the Police Code to explore the correct meanings.

Japanese Police Radio Code Language

While the codes are numeric, the spoken language on the police radio is Japanese. If you’re a foreigner and want to understand these codes while in Japan, it’s helpful to:

• Memorize key police code numbers

• Learn basic Japanese words for “accident,” “crime,” “emergency,” etc.

• Use translation apps that can detect voice radio if necessary
  
  

How to Use Police Code to Learn More

Police Code is more than just a list. It’s a powerful tool to:

• Learn how to stay safe in Japan

• Understand police communication

• Prepare for a legal or language exam

• Train as a security officer or journalist
  
  

Features of Police Code:

• Simple navigation

• Code search by keyword

• Organized by category (traffic, crime, juvenile, etc.)

• No login required

• Completely free
  
  

When to Use This Information

Knowing about Japanese police codes can be helpful in many situations:

• Living in Japan: Understand what you hear during emergencies.

• Driving in Japan: Know traffic violation codes to avoid fines.

• Working in security or journalism: Understand law enforcement better.

• Studying law or criminal justice: Great reference material for exams.

• Traveling: Know when and how to call police (use 110).
  
  

Police Code Helps You Understand the Law

Japan’s legal system is complex, but the Police Code simplifies part of it. You don’t need to be a lawyer or officer to understand these codes. With simple explanations and updated listings, you can get a clear view of Japan’s crime and law response structure.

Japanese Police and Technology

Japanese police also use modern tools like:

• GPS for tracking

• Dashcams and CCTV

• Crime databases

• Mobile apps for citizens

But no matter how advanced these systems get, codes remain the fastest way to communicate.

How Police Code is Used in Reporting

If you hear a crime reported on Japanese TV or radio, you might hear:

• “A suspect was arrested under Code 211”

• “An accident occurred involving Code 231”
  
  

These numbers help keep reporting short and informative.

Even some Japanese police documents use codes instead of full descriptions. That’s why learning them through the Police Code can give you a big advantage.

Can Civilians Use These Codes?

Yes, civilians can learn and understand these codes. But they should not misuse them. Police Code is built for educational and informational use. If you misuse codes (like pretending to be police), you can face legal action.

Use them for:

• Learning

• Understanding news

• Travel safety

• Law education
  
  

Stay Safe in Japan – Know the Codes

Japan is safe, but knowing these police codes can help you:

• Report emergencies properly

• Understand warnings or alerts

• Avoid breaking rules (like Code 602 for illegal parking)

You don’t have to memorize everything. Just remember the most common ones, and visit Police Code whenever you need a quick check.

How to Memorize Police Codes Easily

Here are some quick tips:

• Group them by category (e.g., traffic, crime)

• Use flashcards with code on one side, meaning on the other side

• Practice with friends or classmates

• Use them in real situations (e.g., reading news)
  
  

Final Thoughts

Understanding the Police Code list of Japan is more than just learning numbers. It’s about staying informed, staying safe, and respecting the law. Whether you’re a resident, tourist, or researcher, these codes offer a clear window into how Japanese law enforcement works.

You don’t need to search everywhere for the meanings. Just visit Police Code to get all the details quickly, clearly, and completely free.