About the police
The base of the police in Japan is called "police station" as a division of the police headquarters (Tokyo Metropolitan Police Department). In addition, there is "police box" as a system unique to Japan. This is a system that divides the area under the jurisdiction of the police station further into police boxes at different places in the area, where police officers reside and handle local patrols and residents' troubles. As of 2018, there are 102 police stations in Tokyo. Meanwhile, there are 826 police boxes, which leads to the safety of Japanese people's lives in a precise manner.
In police boxes in principle, police officers work for 24 hours on a shift system and are in charge of responding to cases. Usually, they are located in front of the station where many people go and in sightseeing spots, downtown areas, etc. However, for easy understanding by foreign tourists, we have set up a guide sign board written as "KOBAN" in Roman letters.
The police box can be relied upon not only when there are problems such as incidents, accidents, theft, etc., but also when losing things. When you are in trouble for losing important things such as your smartphone, wallet or credit card, go to the nearest police box. This is because there is a possibility that the person picking up the lost item has delivered it to the police box. As a procedure, in addition to notifying the police officer orally about the date and time of dropping, the place, the contents of the lost item, etc., you will also submit "a report of lost property” (English version available) to fill in on the spot. There are not many police boxes with police officers who can speak foreign languages, but they handle it by utilizing tablet terminals, etc. equipped with voice translation application. Of course, the police station can perform the same procedure as a police box.
As for the lost articles, if you have an idea about the place where you lost them, it is also effective to contact the management office of the facility. In the case of a train (JR, private railway, subway), contact a counter at the nearest station; in the case of a taxi, contact the management company (there is a description of the contact number in the receipt received at the time of payment); in the case of a department store or a large commercial facility, contact the information desk. In Japanese society, people often pick up lost items and deliver them to police boxes and facilities. Please do not give up and try consulting.
On the other hand, if you encounter a serious situation such as a traffic accident or incidents, please report using the telephone number "110" connected to the police station. When reporting, police officers rush to the scene from police cars near the scene of the accident or nearby police boxes. Please be careful as 110 is easily mistaken for the "119" number used for ambulances.