Translation, certified translation and legalisation
What happens after the certificate is issued: translation, certified translation, signature certification by a Notarial Services Attorney, legalisation at the Department of Consular Affairs and endorsement at the destination embassy.
Order matters more than speed, because each step certifies something different. Legalisation at the Department of Consular Affairs certifies the signature and seal of the issuing officer, not the facts inside the document. Embassy endorsement then confirms to that country's authorities that the document came correctly through the Thai chain.
Out of order — embassy before consular affairs — the document is refused and the chain restarts. If you are working to a deadline, map the full sequence on day one rather than taking each step blind to the final requirement.
A translation filed alongside must be complete, including seal text, letterhead and end-notes. Omitting text that looks unimportant is a common cause of rejection. We translate every element and mark the position of each seal in the translation.
Private documents in the bundle — a power of attorney or an applicant's declaration — need signature certification by a Notarial Services Attorney registered with the Lawyers Council of Thailand before they can enter the legalisation chain.
Legal status: Thailand deposited its instrument of accession to the 1961 Hague Apostille Convention on 30 June 2026; it enters into force for Thailand on 28 February 2027 (source: HCCH). Until then a Police Clearance Certificate destined for use abroad still passes through the Department of Consular Affairs and the destination embassy in the traditional order.
Documents to prepare
- The original police clearance certificate
- A complete translation including all seal text
- A power of attorney, if a representative runs the legalisation
- A copy of the document holder's passport
- The destination embassy's own published requirements, if any
Order of steps
- Confirm the destination's final requirement before starting step one
- Produce a complete translation and certify it
- Obtain Notarial Services Attorney signature certification for private documents
- Legalise at the Department of Consular Affairs, Ministry of Foreign Affairs
- Endorse at the destination country's embassy or consulate
- Proofread the bundle and deliver it to the recipient
Pre-filing checklist
- The full sequence is mapped through to the receiving body
- The translation covers every element including seals
- Names in the translation match the passport
- You know whether the destination wants originals or certified copies
- The destination's Apostille status has been checked before choosing the route
Frequently asked questions
What does the Department of Consular Affairs certify?
The signature and seal of the issuing officer or the certifying translator — not the truth of the facts stated in the document.
Can I go to the embassy first?
Generally no. Consular Affairs legalisation comes first; embassies normally refuse documents presented out of order.
Must seals be translated too?
Yes. A complete translation includes seal text, letterhead and end-notes; omissions are a frequent cause of rejection.
When can an Apostille replace the embassy step?
Once the Convention is in force for Thailand on 28 February 2027 and the destination is a Convention party (source: HCCH). Before that date the traditional chain applies.
Can your team run the chain for me?
Yes, under a power of attorney. Contact LINE @nycli, +66-83-249-4999 or nycli@ilc.ltd for the form and document list.
For a document check before you file, contact LINE @nycli, phone +66-83-249-4999 or email nycli@ilc.ltd. Our team will confirm the steps and a realistic timeline for your case.