The koban (交番) is a small neighbourhood police box staffed by one or two officers. Japan has over 6,000 of them, positioned at major intersections, near train stations, and throughout residential neighborhoods. They're a distinctive feature of Japan's community policing model — and one of the most useful resources for lost or confused tourists that exists in any country.
What a Koban Is
A koban is typically a small building (sometimes a prefabricated unit, sometimes architecturally designed) housing one or two uniformed officers who are assigned to know their immediate neighbourhood thoroughly. Officers at a koban are expected to be able to give directions to any address in their zone, know the local community, and respond to minor incidents immediately. The model was adopted by Singapore and other countries as a community policing example.
Unlike police stations (keisatsu-sho), which are larger bureaucratic facilities, koban are accessible walk-in points where the officer is there specifically to interact with the public.
How Koban Help Tourists
Directions: Lost in Tokyo's backstreets? Walk into the nearest koban and show your destination on your phone (or write it down). Officers have detailed local maps and will typically walk you to the corner and point you in the right direction, or mark your map. This works even without shared language — Google Maps, pointing, and basic gestures are universally understood.
Lost property: Japan has one of the world's highest lost-and-found return rates. If you lose something, report it at the nearest koban immediately. Items handed in to train stations and koban are carefully catalogued; wallets with cash, cameras, and phones are regularly returned intact. The central lost property office (Tokyo: Hibiya Park) holds items not claimed at individual stations or koban.
Minor emergencies: If you've been a victim of theft, had an accident, or need police documentation for an insurance claim, the koban is the first point of contact. Officers will involve the main police station if the situation requires it.
General assistance: Needing a taxi, looking for a hospital, unsure about a local regulation — koban officers are accustomed to helping with any practical question. The tourist-assistance function is an acknowledged part of their role.
How to Find a Koban
Look for the small building with the distinctive red light (andon) above the entrance — a traditional police signal still used today. Google Maps shows koban locations if you search "koban" or "police box" in the area. Train stations typically have a koban within 2–5 minutes' walk.
What to Bring
Your passport (or a copy) is helpful for any formal interaction. For lost property reports, having receipts, photos, or identifying information about the lost item speeds the process. Language barriers are manageable — write down key information rather than trying to speak.