Interpreter qualifications, ethics and engagement

Courts maintain an interpreter roster through the Office of the Judiciary and can appoint from it. In practice, less common languages are often not represented locally, so parties propose a private interpreter for the court's approval. Notify the required language at the first hearing date so the case is not postponed.

Where the court appoints an interpreter in a criminal case, the fee is paid from the court's budget at the rate set by the Office of the Judiciary. Where a party engages a private interpreter — typically in civil matters or for its own convenience — that party pays. Ask our staff for the service fee by phone, LINE or email.

Tell the investigating officer you do not understand Thai and ask for an interpreter; the officer has a duty to arrange one under section 13 of the Criminal Procedure Code. Do not sign a record of statement that has not been interpreted to you — that record can later be used as evidence in court.

Yes. The right covers suspects, injured persons and witnesses alike. If no interpreter is available at that moment, you can arrange a new appointment with one. A report that misstates the facts tends to shape the whole case from the outset.

The officer may permit it, but it is unwise where that person has an interest in the same matter — an opposing party, spouse or business partner. The interpreter's impartiality can be challenged, which weakens the evidential value of the statement.

Thai law does not create a specific interpreter licence, so each registrar exercises discretion over who is accepted. Some require the interpreter to attend with a translation office or lawyer and take a copy of the interpreter's ID card for the file.

The parties must genuinely understand the text. If drafted in Thai and the foreign spouse does not read Thai, prepare a bilingual counterpart and have an interpreter explain it before the registrar; otherwise consent can be contested later.

The version registered with the land officer is in Thai, but a bilingual counterpart should be prepared for the foreign tenant's records and negotiations. If the two texts conflict, state in the contract that the Thai version prevails.

Consular legalisation certifies the signature of the competent officer or the correctness of the translation under the department's own criteria. The translator should sign the translation with contact details, and the translation must match the original in every detail, including figures, dates and name spellings.

Large private hospitals in tourist areas often have interpreter desks for major languages such as English, Chinese, Russian and Arabic. Public hospitals usually do not have staff interpreters, so patients should arrange their own for surgery, consent forms and treatment planning.

Yes. Health data is sensitive personal data under the Personal Data Protection Act B.E. 2562, and disclosure to third parties requires a legal basis or the patient's consent. Professional interpreters will sign a confidentiality undertaking on request.

Send the documents to be used, the agenda, proper names, figures and technical terms at least one to two days ahead, along with the purpose and formality level of the engagement. Advance preparation is the single biggest factor in avoiding errors on names, numbers and contract terms.

There is no central interpreter licence as in some countries. Acceptance depends on the authority involved — for example, listing on the Office of the Judiciary roster, or the discretion of a registrar or officer. Clients should therefore check each interpreter's verifiable experience and track record.

The interpreter renders everything completely and faithfully, takes no side, gives no legal advice, and discloses any interest or relationship with a party. Where there is a conflict of interest the interpreter should withdraw so another can be engaged.

For routine government appointments, at least 2–3 working days; for court hearings, rare languages or holiday periods, one to two weeks. For urgent matters, ask our staff about immediate availability.

Send us the language, date and time, venue, type of engagement (court, police, district office, land office, immigration, hospital or business) and the relevant documents by phone, LINE or email. Our staff will confirm interpreter availability and quote the fee for that engagement type and duration before the work starts.

Book at least 5–7 working days ahead for English and 10–14 days for harder languages such as Russian, Chinese, Japanese, Korean, Arabic or regional European languages. Send the court name and courtroom, case number, case type (criminal, civil or family), the hearing date and time, the names of the parties so conflicts of interest can be checked, and copies of key documents such as the complaint, the defence or any contract that will be cited. Reading the case terminology in advance is the single biggest factor in accurate interpreting on the day.

Under section 13 of the Criminal Procedure Code the investigating officer has a duty to arrange an interpreter where a suspect or injured person does not understand Thai, and the state bears that cost. In practice many stations have no interpreter listed for the language, so families engage a private interpreter to avoid delay. In that case the person engaging the interpreter pays, and the interpreter's name should be recorded in the case file for transparency.

The registrar must be satisfied the non-Thai-speaking party understands the marriage register and any prenuptial settlement before signing. Registries generally require the interpreter to be of legal age, not a party or witness in the same matter, to show ID or a passport, and to sign the document as translator. Some districts additionally require an interpreter from a registered company or with a certificate of interpreting. Always confirm with the specific district office before booking the appointment.

Government and court work in Thailand is usually charged in half-day (up to 4 hours) and full-day (up to 8 hours) blocks, because queueing time is unpredictable. Short business meetings or office signings may be hourly with a 2-hour minimum. Typical add-ons are travel outside the district or province, accommodation for early upcountry appointments, and overtime beyond the booked block. Please ask our team for current rates by phone, LINE or email.

Yes, and you should ask for one in business, M&A, due diligence or any matter involving health or sensitive personal data. Confidentiality is already a core professional obligation, and processing personal data is governed by Thailand's Personal Data Protection Act B.E. 2562. A written NDA adds clarity on how preparation documents are stored, when files are destroyed, and where liability sits. We can sign your own NDA template before receiving any briefing materials.

They make history-taking, explanation of results, informed consent before surgery, and medical certificates for insurance claims accurate, which reduces the risk of a patient consenting without understanding the risks. The limits matter: an interpreter is not a clinician, so they do not diagnose, advise on treatment, or decide for the patient. Clinical questions go back to the doctor. Health data is sensitive personal data under the PDPA, so strict confidentiality applies.

Generally no. The interpreter is a neutral conduit for what is said; a witness attests to the signature. Combining both invites challenges to impartiality and can cause the document to be rejected later. The safe practice is a separate witness, with the interpreter signing only in the translator's block. Some offices are flexible, so ask the receiving authority before the appointment.

Typically 24 hours for a half-day booking and 48 hours for a full day or any trip outside the province, because the interpreter has held the slot and likely declined other work. Postponements caused by the court or a government office usually attract no cancellation charge, but send us the postponement notice or the officer's message straight away so we can rebook the same interpreter for the new date without restarting the process.

Interpreters on the Office of the Judiciary roster are selected by the courts and paid at official rates; the court can call on them directly in criminal cases where the state must provide one. A private interpreter is engaged by a party and proposed to the court for approval, which assesses competence and impartiality. The advantage of a private interpreter is case-specific preparation and terminology; the caution is that they must have no interest in the matter.

At the investigation stage the inquiry officer arranges or approves the interpreter under Criminal Procedure Code section 13, and the rendered answers are recorded in the statement that later becomes evidence. In court the interpreter takes an oath or affirmation before serving and renders speech consecutively so that it appears in the record of proceedings. The practical difference is that court renderings can be challenged on the spot by opposing counsel, so experience with the same case type matters more there.

Send key documents one to two days ahead: the complaint or recorded statement, the disputed contract, a list of parties and witnesses, industry or medical terminology, and the spelling of proper names. Where sensitive data is involved, cover it with a confidentiality undertaking consistent with the Personal Data Protection Act B.E. 2562. Preparation reduces mid-hearing clarifications, shortens the session, and lowers the risk that a rendering goes wrong on a decisive point.

English, Russian, Mandarin, German, French and the Scandinavian languages are requested most, followed by Arabic, Korean, Japanese and Eastern European languages. The most common settings are marriage registration, statements to inquiry officers after road and marine accidents, condominium sale signings, and negotiations with insurers at hospitals. Book rarer languages at least a week ahead because the pool of available interpreters is small.

Tell counsel and the court clerk before the session starts so the obstacle is recorded and the court can consider a postponement or allow a substitute. Do not let an untrained relative or friend step in for a criminal matter, because a faulty rendering becomes part of the file. Prevent the problem by contracting for a named backup interpreter and keeping the provider's alternate contact number so a replacement can be sourced the same day.

An interpreter engaged by a lawyer falls within the scope of client confidentiality, and any processing of personal data must follow the Personal Data Protection Act B.E. 2562: collect only what is needed, use it for the notified purpose, and delete it once that purpose ends. In practice, sign a confidentiality agreement before sending documents, use a password-protected channel for file transfer, and state the retention period for copies in the engagement terms.

Two to three working days is usually enough for English in urban areas. Allow one to two weeks for languages with few providers such as Arabic, Hebrew or the Nordic languages. Book court dates as soon as the hearing date is known, because those dates are hard to move. Same-day work is possible only when someone is free locally. Give the venue, start time, expected finish and target language at first contact.

Under sections 13 and 13/1 of the Criminal Procedure Code, an interpreter must be provided when a suspect or witness does not understand Thai, and must affirm that the rendering is truthful and complete. The investigating officer records the interpreter's name in the case file, and stations usually ask for the interpreter's ID or passport plus evidence of experience in that language pair.

Interpreters working on litigation and government matters should sign a confidentiality undertaking and handle files in line with the Personal Data Protection Act B.E. 2562. Agree in advance on the transfer channel, the retention period, and who may access the material.

For languages with few available interpreters — some Eastern European, Arabic, and regional dialects — allow two to four weeks, since the interpreter may travel from another province or the session may need a hybrid in-person and remote setup.

Some offices accept it for non-contentious matters, but many refuse anyone with an interest in the case because impartiality is at risk. For interviews, civil status registration, and juristic acts, use an independent interpreter.

Both models are common: half-day or full-day blocks, or a fee per specific appearance. Language, venue, urgency, and travel all affect the quote, so request the scope and conditions in writing before confirming the booking.