12 min read

Japanese Police and Lost Property Phrases

Japanese phrases for reporting lost property at a koban, describing items, filing a report, handling stolen cards, collecting belongings and calling police.

At a Japanese police box, say 財布をなくしました。遺失届を出したいです (saifu o nakushimashita. Ishitsutodoke o dashitai desu): “I lost my wallet and want to file a Lost Property Report.”

If the item disappeared inside a train, shop, airport or hotel, contact that facility first. Freeze cards and phone service separately; a police report does not do that for you.

Key takeaways

  • 交番 (koban) is a neighborhood police box.
  • 遺失届 is a Lost Property Report.
  • Contact the managed facility first when the location is known.
  • Give last time/place and unique identifying features.
  • Suspend bank cards, credit cards and phone service immediately.
  • Use 110 for an active crime or accident, not routine lost property.
  • Keep the report/reference information.
  • Confirm identity, pickup and shipping requirements before leaving Japan.

In this guide: vocabulary | first steps | koban | description | theft | collection | scripts | practice

Essential police and lost property vocabulary

Japanese Reading Meaning
交番 kouban police box
警察署 keisatsusho police station
遺失届 ishitsutodoke Lost Property Report
落とし物 otoshimono lost/found item
忘れ物 wasuremono item left behind
紛失 funshitsu loss
盗難 tounan theft
拾得物 shuutokubutsu found property
問い合わせ番号 otoiawase bangou inquiry/reference number
特徴 tokuchou identifying feature
中身 nakami contents
受け取り uketori collection/receipt
身分証明書 mibun shoumeisho identity document
委任状 ininjou power of attorney
防犯カメラ bouhan kamera security camera

Use なくした when uncertain and 盗まれた only when you believe it was stolen and can explain why.

What to do first

Lost in a managed facility

Contact the train operator, station, store, taxi company, hotel, airport or event venue.

電車の中にかばんを忘れました。
Densha no naka ni kaban o wasuremashita.

忘れ物センターにつないでください。
Wasuremono sentaa ni tsunaide kudasai.

The NPA distinguishes property lost inside a managed facility from property lost on a street or at an unknown location. Facility staff may transfer unclaimed items to police later.

Lost outside or location unknown

Visit a koban or police station:

財布をなくしました。遺失届を出したいです。
Saifu o nakushimashita. Ishitsutodoke o dashitai desu.

Freeze financial and phone access

キャッシュカードとクレジットカードを停止しました。
Kyasshu kaado to kurejitto kaado o teishi shimashita.

携帯電話会社にも連絡しました。
Keitai denwa gaisha ni mo renraku shimashita.

Do this immediately through the issuer/operator's official channel.

Reporting a loss at a koban

Opening:

すみません。落とし物の相談です。
Sumimasen. Otoshimono no soudan desu.

遺失届を出したいです。
Ishitsutodoke o dashitai desu.

Last confirmed possession:

最後に確認したのは、午後3時頃、渋谷駅です。
Saigo ni kakunin shita no wa, gogo sanji goro, Shibuya-eki desu.

Route:

渋谷駅から新宿駅まで山手線に乗りました。
Shibuya-eki kara Shinjuku-eki made Yamanote-sen ni norimashita.

Discovery time:

午後5時頃、なくなっていることに気づきました。
Gogo goji goro, nakunatte iru koto ni kizukimashita.

Request language help:

英語の通訳をお願いできますか。
Eigo no tsuuyaku o onegai dekimasu ka.

Tokyo Police guidance says interpreters can assist emergency calls, while ordinary in-person support depends on circumstances.

Describing the lost item

Use category, color, material, brand, size and unique marks.

黒い二つ折りの革の財布です。
Kuroi futatsuori no kawa no saifu desu.
It is a black bi-fold leather wallet.

表に小さな傷があります。
Omote ni chiisana kizu ga arimasu.

中に現金、在留カード、銀行カードが入っています。
Naka ni genkin, zairyuu kaado, ginkou kaado ga haitte imasu.

For phone:

機種は [model]、色は青、透明なケースに入っています。
Kishu wa [model], iro wa ao, toumei na keesu ni haitte imasu.

For keys:

鍵が三本あり、赤いキーホルダーが付いています。
Kagi ga sanbon ari, akai kiihorudaa ga tsuite imasu.

For bag:

灰色のリュックで、右側に水筒が入っています。
Haiiro no ryukku de, migigawa ni suitou ga haitte imasu.

Do not publish full card, passport or account numbers. Give sensitive details only through the official process when required.

Describing time and place accurately

Useful phrases:

10月22日の午後2時から4時の間です。
Juugatsu nijuuni-nichi no gogo niji kara yoji no aida desu.

駅の改札付近で落とした可能性があります。
Eki no kaisatsu fukin de otoshita kanousei ga arimasu.

どこでなくしたか、はっきりわかりません。
Doko de nakushita ka, hakkiri wakarimasen.

この経路を歩きました。
Kono keiro o arukimashita.

Show a map or route history only if comfortable and relevant. Preserve battery for account suspension and contact.

Lost versus stolen

If there is evidence of theft:

財布を盗まれた可能性があります。
Saifu o nusumareta kanousei ga arimasu.

かばんを開けた形跡があります。
Kaban o aketa keiseki ga arimasu.

不審な人を見ました。
Fushin na hito o mimashita.

防犯カメラを確認していただけますか。
Bouhan kamera o kakunin shite itadakemasu ka.

State what you observed, not a conclusion about a person.

Call 110 for an active crime, immediate danger or accident. Tokyo Police says #9110 is for non-emergency consultation and that a koban can handle lost property and theft reports.

Questions about the report

届出の番号を教えてください。
Todokede no bangou o oshiete kudasai.

見つかった場合、どのように連絡が来ますか。
Mitsukatta baai, dono you ni renraku ga kimasu ka.

オンラインで検索できますか。
Onrain de kensaku dekimasu ka.

鉄道会社にも届けたほうがよいですか。
Tetsudou gaisha ni mo todoketa hou ga yoi desu ka.

帰国後も連絡を受けられるよう、メールアドレスを登録できますか。
Kikokugo mo renraku o ukerareru you, meeru adoresu o touroku dekimasu ka.

The NPA asks overseas residents to provide a valid email/phone and a contact in Japan when possible.

Collecting found property

When contacted:

落とし物が見つかったという連絡を受けました。
Otoshimono ga mitsukatta to iu renraku o ukemashita.

受け取りに必要な書類を教えてください。
Uketori ni hitsuyou na shorui o oshiete kudasai.

代理人が受け取ることはできますか。
Dairinin ga uketoru koto wa dekimasu ka.

郵送を依頼できますか。費用はいくらですか。
Yuusou o irai dekimasu ka. Hiyou wa ikura desu ka.

保管期限はいつまでですか。
Hokan kigen wa itsu made desu ka.

Bring identity and report/contact details. Requirements differ by holding office and item.

Passport, residence card and travel deadlines

Identity documents require additional action beyond the lost-property report.

パスポートと在留カードが財布に入っていました。
Pasupooto to zairyuu kaado ga saifu ni haitte imashita.

再発行のため、届出を証明する書類はもらえますか。
Saihakkou no tame, todokede o shoumei suru shorui wa moraemasu ka.
Can I receive a document proving the report for reissuance?

三日後に帰国予定です。見つかった場合はメールでも連絡してください。
Mikka-go ni kikoku yotei desu. Mitsukatta baai wa meeru demo renraku shite kudasai.

日本にいる代理人を登録できますか。
Nihon ni iru dairinin o touroku dekimasu ka.

Contact the relevant embassy/consulate for a passport and the Immigration Services Agency for residence-card procedures through their official channels. The police report is evidence of loss, not a replacement identity document.

Keep copies of the report and record which cards were inside. Do not put full document numbers into public posts asking strangers for help.

Insurance and employer documentation

Travel insurers or employers may request proof, but police decide which documents they can issue.

保険会社に提出するため、届出日と受理番号がわかる書類が必要です。
Hoken gaisha ni teishutsu suru tame, todokedebi to juri bangou ga wakaru shorui ga hitsuyou desu.

会社に報告する必要があります。盗難届か遺失届か確認してください。
Kaisha ni houkoku suru hitsuyou ga arimasu. Tounantodoke ka ishitsutodoke ka kakunin shite kudasai.

Do not ask police to describe an uncertain loss as theft solely for an insurance claim. Give facts, preserve receipts and let the insurer determine coverage under its policy.

If you found property

At a facility:

この財布を店内で拾いました。
Kono saifu o tennai de hiroimashita.

On a street:

道で携帯電話を拾いました。届けたいです。
Michi de keitai denwa o hiroimashita. Todoketai desu.

The NPA says found property in a managed facility should be reported to the facility promptly; property found elsewhere should be taken to police or a koban. Legal rights and deadlines exist, but a finder can relinquish rights. Do not inspect private contents beyond what is necessary for safe handover.

Complete police scripts

Lost wallet

You: 財布をなくしました。遺失届を出したいです。
Officer: いつ、どこでなくしましたか。
You: 今日の午後3時頃、渋谷駅で最後に確認しました。その後、山手線で新宿まで移動しました。黒い革の二つ折り財布で、表に傷があります。
Officer: 中身は何ですか。
You: 現金、在留カード、銀行カードです。カード会社には停止を依頼しました。見つかった場合の連絡方法と届出番号を教えてください。

Lost phone

You: 青い [model] の携帯電話をなくしました。透明なケースで、待ち受け画面は [safe description] です。通信会社には停止を依頼しました。最後に使ったのは [station] です。

Possible theft

You: 財布を落としたのか盗まれたのかわかりません。電車に乗る前にはありましたが、降りた後、かばんのファスナーが開いていました。事実として確認できるのは以上です。

Practice plan

  1. Describe one wallet in five details.
  2. Give a two-hour time range and travel route.
  3. Explain whether it was lost, left or possibly stolen.
  4. Ask for report number, contact method and collection requirements.

Practise a lost-wallet report, repeat it for a lost phone, and try a possible-theft scenario using fictional identifiers.

Use Japanese speaking practice with AI, how to practice speaking Japanese alone, Japanese shadowing practice, and a 30-minute Japanese study routine.

Final checklist

Confirm:

  • Facility or police route.
  • Item description and contents.
  • Last date, time, place and route.
  • Card/phone suspension.
  • Lost versus possible theft facts.
  • Report/reference number.
  • Contact information.
  • Pickup, proxy, shipping and deadline.

End with:

届出番号と今後の連絡方法を確認できました。ありがとうございます。
Todokede bangou to kongo no renraku houhou o kakunin dekimashita. Arigatou gozaimasu.

How we researched

We checked the National Police Agency lost-belongings portal, Tokyo Metropolitan Police lost-and-found process, 2026 visitor safety guidance and official emergency/non-emergency instructions on 22 October 2026.

This article provides language support, not legal advice or an emergency assessment. Procedures, finder rights and collection rules depend on location and facts.

Sources

About SoraSpeak: SoraSpeak is an AI Japanese speaking-practice web app at https://soraspeak.com. It provides three free spoken sessions per day without a credit card. Support: soraspeaksupport@gmail.com.

SoraSpeak is an independent Japanese speaking-practice app. It is not a school, employer, immigration adviser, testing organization, or affiliate of any product named here. Requirements, fees, schedules, and product features can change; verify them with the official source before acting.

FAQ

How do I say I lost something in Japanese?
Say, '[item] o nakushimashita' (I lost [item]) or '[item] o otoshita kamo shiremasen' (I may have dropped [item]). Then give the last confirmed place, time, route, item color, brand and identifying features.
Where should I report lost property in Japan?
If it was lost inside a managed facility such as a train, shop or hotel, contact that facility first. If it was lost on a street or the location is unknown, file a Lost Property Report at a police station or koban.
Should I call 110 for a lost wallet?
Ordinary lost property is not normally a 110 emergency. Visit a koban or police station and contact card issuers immediately. Tokyo Police says 110 is for crimes and accidents; non-emergency consultation is available through #9110.
What information is needed for a Japanese lost property report?
Prepare item type, color, brand, model, contents, serial or card details where safe, last known date/time and place, route taken, name and a reachable Japanese contact. Police use these details to match recovered property.
What should I do if my bank card or phone is missing?
The National Police Agency says to contact the card issuer or mobile operator immediately to suspend the account or phone. Filing a police report does not itself freeze cards, payment apps, SIM service or device access.
Can a visitor collect found property after leaving Japan?
The NPA asks non-residents to provide a valid email or phone number and, if possible, a contact in Japan. Collection, identity proof, authorization and shipping depend on the police or facility holding the item, so confirm before departure.

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