Japan does not offer a U.S.-style public criminal-history name search
Japan’s criminal-record system works very differently from public-record systems in many U.S. jurisdictions. There is no general National Police Agency website where a member of the public can enter another person’s name and retrieve arrests, convictions or a nationwide criminal background report. Official criminal-record certificates are fingerprint-based documents issued for the person concerned when a foreign government or other qualifying authority requires one. Court websites, meanwhile, publish selected judgments and legal precedents rather than a searchable personal criminal-history database.
Why you cannot simply type a person’s name into a Japanese criminal-record database
Japan does not operate a public-facing nationwide criminal-history service comparable to some U.S. state court or criminal-history databases.
The National Police Agency maintains criminal-identification information used for law-enforcement purposes, but its official Certificate of Criminal Record is issued through a controlled, fingerprint-based process to the individual concerned when the certificate is required by an appropriate foreign authority or for another qualifying purpose.
The Courts of Japan website itself also warns users that arrest warrants cannot be searched through the court website.
“Criminal record” can mean several different things in Japan
犯罪経歴証明書
A fingerprint-based Certificate of Criminal Record issued for qualifying official purposes, most commonly when a foreign authority requires it.
Published case decision
Selected judicial decisions published by the Courts of Japan for legal research and precedent. This is not a nationwide background-check database.
Concluded-case records
Records from a criminal case after the judgment becomes final may be held by the relevant public prosecutors office and can be subject to inspection rules.
Investigation / arrest records
Law-enforcement records are not turned into an open general-public name database.
Crime data
NPA publishes nationwide crime statistics and prefectural crime open data, but these datasets describe incidents rather than individual criminal histories.
Arrest warrant information
The Courts of Japan specifically warns that users cannot search arrest warrants on its website.
How Japan’s official Certificate of Criminal Record works
Japan’s official criminal-record certificate is commonly called a police certificate or Certificate of Criminal Record.
The National Police Agency’s certificate format states that the certificate is based on a search of fingerprint files maintained by the National Police Agency.
The certificate is not designed as a casual personal background-report service. Prefectural police guidance explains that it is normally issued when a foreign government, embassy, immigration authority, licensing body or other appropriate official authority requires the applicant to submit it for a qualifying purpose.
You normally request your own certificate — not someone else’s
Prefectural police procedures require the person concerned to apply personally because fingerprints must be collected or submitted as part of the process.
Osaka Prefectural Police, for example, explicitly states that a representative cannot submit the original application on the applicant’s behalf because fingerprinting is required.
Residence jurisdiction matters
Applications in Japan are generally handled by the prefectural police headquarters connected to the applicant’s current residence.
A person now living overseas may also be directed based on their last registered address in Japan or may apply through a Japanese diplomatic mission abroad.
Documents usually needed for a Japanese police certificate
Exact document requirements should always be checked with the responsible prefectural police headquarters because procedures can vary slightly.
Official prefectural guidance commonly requires:
- completed criminal-record certificate application form
- valid passport
- proof that a foreign authority requires the certificate
- proof of current Japanese residence
- residence card for qualifying foreign nationals
- My Number Card or driver’s license where accepted
- residence certificate when required
- proof of overseas residence for applicants living abroad
A prefectural police headquarters may ask for a Japanese translation when the supporting document is written only in a foreign language.
Fingerprinting is central to the official certificate
The Japanese police certificate is tied to fingerprint records rather than being produced from a simple internet name search.
Applicants should expect fingerprints to be collected as part of the official process. This is also why original applications generally must be made personally rather than through an ordinary representative.
Where to apply while living in Japan
Contact the police headquarters for the prefecture where you are registered as a resident. Do not assume that an ordinary neighborhood police box (koban) or local police station can issue the certificate.
Osaka Prefectural Police, for example, accepts applications only through its prefectural police headquarters and specifically states that applications cannot be submitted at ordinary police stations or police boxes.
How to obtain a Japanese police certificate while living overseas
Japanese citizens and foreign nationals who previously lived in Japan may be able to apply through the Japanese embassy or consulate serving their current location.
Prefectural police guidance advises overseas applicants to contact the Japanese diplomatic mission first because the required documents and processing time can differ from an application submitted inside Japan.
How much does a Japanese criminal-record certificate cost?
Fee rules should be checked with the responsible prefectural police headquarters. Osaka Prefectural Police currently lists its criminal-record certificate application as free of charge.
How long does issuance take?
Osaka’s current official guidance says a certificate is normally issued about two weeks after the completed application, although holidays and unusual cases can extend the processing period.
Do not open the police certificate envelope unless instructed
One particularly important practical detail is that the issued police certificate may be sealed for delivery to the requesting foreign authority.
Osaka Prefectural Police warns that opening the sealed envelope can invalidate the certificate.
The certificate is multilingual
Japan’s police criminal-record certificate is issued in multiple languages.
Current prefectural police guidance states that the certificate is presented in:
- Japanese
- English
- French
- German
- Spanish
The National Police Agency’s standard certificate format itself contains these languages.
If the destination country asks for an apostille or authentication
The police certificate and the legalization of that certificate are separate steps. When the foreign authority requires an apostille or other authentication, follow the Ministry of Foreign Affairs of Japan procedure.
Japan’s Ministry of Foreign Affairs handles apostilles and authentication for qualifying Japanese public documents.
MOFA Certification GuideWhat you can search on the Courts of Japan website
The Courts of Japan maintains an official Judgments Search.
This database is useful for legal research. It allows searches using criteria such as:
- keyword
- judgment date
- case number
- bench
- original court
The site includes selected Supreme Court and other published decisions, including criminal cases.
Search Published JudgmentsWhy court judgment search is not the same as looking up a person’s criminal record
| Source | What it is for | What it does not provide |
|---|---|---|
| NPA / prefectural police certificate | Official fingerprint-based criminal-record certification for qualifying purposes. | Not an open public search for another person. |
| Courts judgment search | Selected published judicial decisions and legal research. | Not every criminal case and not a complete personal criminal-history database. |
| Final criminal case record | Access to concluded case materials under applicable inspection rules. | Not necessarily available online or without restrictions. |
| NPA crime statistics | National crime trends and incident statistics. | No personal criminal-history search. |
Access to records after a Japanese criminal case is final
Japan does provide a legal route for inspecting certain records from completed criminal proceedings, but this is different from a web-based criminal-history search.
Official NPA victim-support information explains that records and judgments from criminal cases that have become final are kept by the public prosecutors office handling the matter and can be subject to inspection under Japan’s Act on Final Criminal Case Records.
Older Ministry of Justice explanatory material likewise states that final criminal-case records may, in principle, be inspected, subject to the statutory rules and exceptions.
NPA’s current victim-information material notes that records other than the judgment itself are generally subject to a limited inspection period, commonly three years after the judgment becomes final, subject to the applicable law and individual circumstances.
Pending criminal-case records are more restricted
Pending criminal-case files should not be assumed to be available to an unrelated member of the public.
Victims may have specific rights to inspect or copy certain litigation materials during a criminal trial when the legal requirements are met, but this is a special statutory access route rather than a general public background search.
Cases that did not lead to prosecution are not generally open criminal records
Official Ministry of Justice explanatory material states that records of cases in which prosecutors decided not to prosecute are generally not disclosed.
Limited disclosure may sometimes be considered for victims or related parties who need particular evidence to exercise legal rights—for example, in a related civil damages case—but that is not the same as public access for ordinary background research.
You cannot search Japanese arrest warrants on the court website
The Courts of Japan currently publishes an explicit warning that arrest warrants cannot be searched on the official court website.
The court also warns about fake websites impersonating Japanese courts and using supposed warrant information as part of scams.
Can a private employer obtain a Japanese criminal-record certificate?
Japan’s police certificate is not designed as a routine employer background-check product that a private company can order whenever it chooses.
Osaka Prefectural Police expressly states that if a company alone asks an employee to obtain the certificate, the application cannot be accepted unless the certificate is actually required by the relevant foreign official authority or fits another recognized issuance purpose.
For crime trends, use Japan’s official crime statistics instead
If your goal is research into crime rates, offenses or location patterns rather than checking a specific person, the National Police Agency publishes official crime statistics.
NPA currently provides finalized annual statistics going back many years and provisional current-year crime data.
NPA Crime StatisticsNPA also links to crime open-data portals maintained by Japan’s prefectural police forces. These datasets commonly concern incident locations and offense categories, not personal criminal histories.
Prefectural Crime Open DataPractical tips for researching criminal information in Japan
Define your goal first
A police certificate, published judgment and final criminal case file are different things.
Do not expect a public name search
Japan does not provide the type of open statewide defendant search commonly seen in parts of the U.S.
Use fingerprints for your certificate
The official police-certificate process is fingerprint-based and tied to the applicant’s identity.
Bring proof of official need
A foreign-government or immigration requirement is often essential to issuance.
Check the correct prefecture
Applications in Japan are handled by the relevant prefectural police headquarters.
Do not open sealed documents
Follow the requesting authority’s instructions before opening a police certificate envelope.
Judgment database = legal research
Published judgments are useful for case-law research, not for comprehensive personal histories.
Beware fake warrant sites
Japan’s official courts explicitly say arrest warrants cannot be searched on their website.
Apply early
Certificate issuance can take around two weeks or longer depending on location and circumstances.
Common questions about Japanese criminal records
1. Can I search someone’s criminal record online in Japan?
Japan does not provide a general nationwide public government name-search database for another person’s complete criminal history. Official police certificates are fingerprint-based and are issued to the person concerned for qualifying official purposes.
2. What is Japan’s official criminal-record certificate?
It is a Certificate of Criminal Record, often called a police certificate, issued through Japan’s police system after a fingerprint-based check when an appropriate foreign authority or other qualifying official process requires it.
3. Can I request another person’s Japanese police certificate?
The ordinary application process is personal and fingerprint-based. Applicants generally must appear themselves, and the certificate is not designed as an open third-party background-search product.
4. Where do I apply for a criminal-record certificate in Japan?
Apply through the prefectural police headquarters responsible for your residence. Local procedures should be confirmed in advance because ordinary police stations or koban may not accept applications.
5. Can I apply for the certificate from outside Japan?
Yes, depending on your circumstances. Former residents and Japanese nationals abroad may apply through a Japanese embassy or consulate. Contact the diplomatic mission first for its exact requirements.
6. How long does a Japanese police certificate take?
Processing varies. Osaka Prefectural Police currently says issuance is normally about two weeks after a complete application, with longer periods possible around holidays or in unusual cases.
7. Is the Japanese police certificate available in English?
Yes. Current police guidance states that the certificate is produced in Japanese, English, French, German and Spanish.
8. Can I search Japanese court judgments online?
Yes. The Courts of Japan maintains an official judgment-search system containing selected published decisions. It is intended for judicial-decision research and is not a comprehensive personal criminal-history database.
9. Can I search for an arrest warrant online through Japanese courts?
No. The Courts of Japan currently warns that arrest warrants cannot be searched on the court website. Be cautious of fake sites or messages claiming otherwise.
10. Can completed Japanese criminal-case records be inspected?
Certain records from final criminal proceedings may be inspected under Japan’s rules governing final criminal case records. These records are generally held by the relevant public prosecutors office, and statutory restrictions and access periods apply.
Official Japanese sources for verifying the process
- National Police Agency — Certificate of Criminal Record Format
- National Police Agency — English Information
- Osaka Prefectural Police — Criminal Record Certificate Procedure
- National Police Agency — Prefectural Police Headquarters Links
- Courts of Japan — Official Website
- Courts of Japan — Judgment Search
- National Police Agency — Final Criminal Case Record Access Information
- National Police Agency — Crime Statistics
- National Police Agency — Prefectural Crime Open Data
- Ministry of Foreign Affairs — Apostille and Authentication Guidance