Submitting an affidavit or witness statement to the United Kingdom — how must it be translated and certified?

This question is specifically about “Submitting an affidavit or witness statement to the United Kingdom”, so it deals with the case-specific points first and the shared rules afterwards. The specifics here are document type: Affidavit; destination: Uk, and those decide which translation and certification level applies. The terms that frame this page are Submitting · affidavit · witness · statement. The most frequent cause of delay in this group is missing supporting documents on the first submission. The common failure in this group of cases is a translation that does not match the certification type required. Before starting, check that names are spelled identically to the passport or ID card on every page, then confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then count the number of certified sets needed before work starts, because extra sets restart the certification steps. For documents going abroad, include international shipping time in the plan. Public holidays and embassy closures move certification queues more than most people expect. Record the reference number of each certification layer; it is the fastest way to trace status. Attach a document index to the bundle so nothing is lost during review. After certification, scan the full set before it leaves your hands. For overseas use of a Thai court document the sequence is: obtain the court-certified copy, translate it into the target language, have the translation certified by the Legalisation Division of the Department of Consular Affairs, MFA, and then have it legalised by the destination country's embassy or consulate where that country requires it. Always confirm the destination's written requirements first. A court translation must keep legal terms exact, preserve the black-case and red-case numbers, the official court name, party names as they appear in the passport or civil register, and the source dates with the Buddhist or Gregorian era stated. Nothing may be summarised or omitted — footnotes, seals and endorsements included — and seal wording should be described in brackets so the receiving office can follow it. Thailand is not a party to the Hague Apostille Convention, so no Apostille is issued for Thai-issued documents; Thai court documents go through Department of Consular Affairs certification and destination-embassy legalisation instead. Where a destination asks for an Apostille, request written confirmation that it accepts the Thai legalisation route. Cost and lead time depend on page count, the density of legal terminology, the target language and the certification steps required, so every file is quoted before work starts. Send scans of every page of the case document together with the written requirements from the court, authority or receiving embassy via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

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