Do I Have the Right to Remain Silent in Japan? How It Differs from Miranda

A man once described the moment this way: the questions had already started, and he was still waiting for the sentence he had heard a hundred times on television, the one about anything you say being used against you. It never came in the form he expected. He answered for three hours, assuming that because no warning had been read out, nothing he said could count.

That assumption is wrong, and it is one of the most consequential misunderstandings a foreign national can carry into a Japanese police station. Japan does recognise a right to silence. But its legal basis, the way it is communicated, and what follows when it is not communicated, all differ from the Miranda framework familiar to English speakers.

Below: where the right comes from, the three differences that matter most, what to watch for when questioning runs through an interpreter, what a written statement actually is before you sign it, and how the decision reaches your residence status.

Where the right comes from in Japanese law

It rests on two provisions: Article 38(1) of the Constitution of Japan and Article 198(2) of the Code of Criminal Procedure. Article 38(1) provides that no person shall be compelled to testify against himself. The protection is not limited to Japanese nationals; it extends to foreign nationals present in Japan, whatever residence status they hold and whether or not that status is currently valid.

Article 198(2) requires that, before questioning a suspect, the investigator notify the suspect that he or she is not required to make a statement against his or her will. The duty sits with the investigating authority; it is not something you must request. Japan is also a party to the International Covenant on Civil and Political Rights, whose Article 14(3)(a) guarantees prompt information about the charge in a language the person understands, and Article 14(3)(f) the free assistance of an interpreter.

One further provision underpins the rest: Article 39(1) of the Code of Criminal Procedure, the right of access to counsel. A detained suspect may meet defence counsel, or a person seeking to become counsel, without any official present, and exchange documents and articles. Whether to answer questions is a decision to be made after that meeting, not before it.

Three ways this differs from Miranda

The first difference is what happens when the warning is not given. Under the framework English speakers usually have in mind, a statement obtained without the warning is as a general rule excluded. Japanese practice does not work that way. A failure to give the Article 198(2) notification does not automatically strip a written statement of admissibility; it is treated as one factor in assessing whether the statement was voluntary. A plan resting on the belief that a missing warning cancels everything after it has no floor under it.

The second is the absence of counsel in the interview room. Japanese law contains no express right to have a lawyer present during police questioning. The room holds the suspect, the investigator, and where necessary an interpreter. There is no mechanism for halting questions until a lawyer arrives. This is why the meeting under Article 39(1) carries more weight in Japan than its equivalent elsewhere: strategy has to be settled in advance, because it cannot be adjusted in the room.

The third is the length of pre-charge detention. After arrest, police must refer the case to a prosecutor within 48 hours. The prosecutor then has 24 hours from receiving the suspect, and no more than 72 hours from the arrest, to decide whether to request detention. Detention runs for up to 10 days and may be extended by up to 10 more. Questioning can therefore continue in custody for up to 23 days before the charging decision.

When and how the notification is given

In ordinary practice it is given orally at the start of a session, sometimes accompanied by a form to sign. What the wording usually does not spell out is the rest of the picture: that silence now does not prevent you speaking later, that a statement already recorded is hard to withdraw, and that you may simply say you will answer after consulting your lawyer. That last sentence is a legitimate answer and, early on, usually the safest one.

Article 301-2 of the Code of Criminal Procedure requires audio and video recording of custodial questioning, in principle throughout, in cases subject to the lay judge system and in cases investigated independently by prosecutors. That is a limited category; most cases fall outside it. Whether your own questioning is recorded is something to confirm through counsel rather than assume.

What goes wrong through an interpreter

Meaning shifts at the point of translation, and in a criminal case the shifted version is what survives on paper. Article 175 of the Code of Criminal Procedure provides for interpretation where a person not conversant with Japanese makes a statement; Article 178 covers translation of writings not in Japanese; Article 74 of the Court Act provides that the Japanese language shall be used in the courts.

According to the Supreme Court of Japan’s publication on court interpreting, January 2025 edition, 3,851 defendants whose cases required interpretation reached final disposition in 2023, of which English accounted for 3.8 per cent. English is also frequently chosen for people whose first language is something else, on the basis that they can manage in it. In that situation the nuanced material — degrees of knowledge, intention, hesitation — is what tends to be lost.

If you think the interpretation is inaccurate, say so at the time. Article 171 of the Penal Code makes false interpretation a criminal offence, and accuracy is the interpreter’s duty. Raising the point is not an accusation; it is part of making the record correct.

What you are actually signing

A Japanese written statement is not a transcript of your words. It is a narrative composed in Japanese by the investigator, written in the first person as though you had said it that way. For most foreign nationals this is the most surprising feature of the process.

Article 198(4) requires that the statement be read to you, or shown to you, and that you be asked whether it contains any error; if you request an addition, deletion or alteration, that request must be entered in the statement. You may demand corrections on the spot, and you may refuse to sign and seal it at all. Without your signature the document is not completed in that form. Signing something you did not fully follow, because the reading was fast or the interpreted version did not match your meaning, is not a neutral act — it will later be read by people who were not in the room, immigration officials among them.

How the choice reaches your residence status

Statements recorded during the investigation can be used later as material in immigration violation examinations and oral hearings. That is why a foreign national’s criminal matter has to be designed as one structure spanning both processes.

Article 24, item 4(ri) of the Immigration Control and Refugee Recognition Act lists as a ground for deportation a person sentenced to imprisonment (kōkinkei) for life or for a term exceeding one year. There is a proviso: a person whose sentence is suspended in whole is excluded, and where the sentence is partially suspended, a person is excluded if the portion to be served is one year or less. The common claim that a suspended sentence still triggers this ground is not accurate.

Drug cases sit outside that logic. Article 24, item 4(chi) covers a person found guilty of violating laws on narcotics, cannabis, opium or stimulants. A fine is enough; a suspended sentence is enough; remission of punishment is enough; the type of residence status makes no difference. Item 4(ri) opens with wording covering persons other than those in items 4(ni) through 4(chi), so sentence length never enters the drug analysis.

According to the 2025 White Paper on Crime, the prosecution rate in 2024 for cases involving visiting foreign nationals was 44.28 per cent, against 40.38 per cent overall. That category excludes permanent residents, spouses of permanent residents, special permanent residents, persons connected to the United States forces in Japan, and persons whose residence status is unknown. Avoiding an indictment is worth more to a foreign national, because the immigration consequences attach to the conviction rather than to the arrest.

Misconceptions worth removing

That staying silent lengthens detention, so it is better to talk. Detention turns on the risk of destroying evidence and the risk of flight, not on whether a statement was given. In some cases an early, accurate account does help; there is no universal answer, which is exactly why it is a judgment to make with counsel.

That once you have spoken you can no longer stay silent. The right may be exercised at any stage. What does not happen is that earlier statements disappear, so a change of approach should be discussed with your lawyer first.

What you and your family can do now

• Say that you want the duty attorney. An arrested person may call on a lawyer once, free of charge, through that system.
• Say that you want your consulate notified. Article 36 of the Vienna Convention on Consular Relations provides for consular notification and access at the detained person’s request; consular officers cannot act as your defence lawyer.
• Family members should gather the residence card, passport, employment contract, documents showing family ties, and material on the residence address — used in detention and bail decisions and again in immigration proceedings.
• Articles 19-16 and 19-17 of the Immigration Control Act require notification about the affiliated organisation within 14 days, and that period runs even while you are in custody.

How our office works

At Funado International Law Office, attorney Daisuke Matsumura attends detention visits and meetings personally. We work through what to say at each stage of questioning and which points to answer only after consulting counsel. On interpretation: a dedicated interpreter for foreign national cases in Chinese is permanently on staff; for English and other languages we arrange interpreters according to the requirements of the case.

We treat a suspended sentence as an insufficient result, and take a decision not to prosecute as the primary objective. Criminal defence and immigration procedure are designed together, because investigation statements become material in later immigration proceedings. We also examine whether intent or negligence can be contested in relation to the grounds for deportation themselves. The first consultation is free of charge. Our WeChat ID is matsumura1119.

Closing note

The right to silence is usually discussed as a switch with two positions. In practice it is a matter of design: when to speak, about what, and in what form. That design depends on the alleged offence, the state of the evidence, the stability of your circumstances in Japan, and the status you hold. This article is a general explanation; for any specific matter, please consult a lawyer directly.

Author

Daisuke Matsumura, Attorney at Law
Member of Daiichi Tokyo Bar Association (registration number 59077, admitted 2019)
Funado International Law Office (Fuse Building Main Wing 3F, 3-4-10 Takada, Toshima-ku, Tokyo)
Principal focus on criminal defence and immigration procedures for foreign nationals, centred on Chinese clients. Results include an acquittal in a Stimulants Control Act case involving possession for the purpose of profit, non-prosecution in a special fraud matter, and grants of special permission to stay in cases regarded as difficult.

Funado International Law Office
Website: https://matsumura-lawoffice.jp/
WeChat ID: matsumura1119

Japanese version of this article: https://matsumura-lawoffice.jp/blog/detail/2026099040/