Key takeaways
- Practice Direction 57AD states that neither Initial Disclosure nor Extended Disclosure requires any document to be translated.
- Documents you rely on at trial, put to witnesses or serve abroad usually need a full, accurate English or local-language translation.
- CPR 6.45 requires a translation, with the translator's name, address and qualifications, for documents served abroad through official channels in many cases.
- A staged approach (machine-assisted triage, human summaries, then full translations of key documents) keeps disclosure costs proportionate.
This article is for litigation solicitors, paralegals, in-house legal teams and litigation support managers who hold documents in languages other than English. It covers what the civil procedure rules in England and Wales say about translation in disclosure, how to plan translation across a case, and how to avoid paying to translate documents nobody needs.
It sits within our guide to legal translation. Witness evidence follows separate rules, which we cover in translating witness statements for UK proceedings.
Do documents have to be translated for disclosure in England and Wales?
No. In the Business and Property Courts, disclosure does not in itself oblige a party to translate foreign-language documents. Practice Direction 57AD says so twice. Paragraph 5.7 states:
"For the avoidance of doubt, Initial Disclosure does not require any document to be translated."
Paragraph 9.10 says the same of Extended Disclosure. The documents are disclosed in their original language, and the receiving party decides what to translate for its own purposes.
Outside the Business and Property Courts, CPR Part 31 applies. Under rule 31.6, standard disclosure covers the documents a party relies on and those that adversely affect its own case or another party's case, or support another party's case. Part 31 sets no translation duty either, but language still affects the cost of the search and review that disclosure requires.
When does foreign-language evidence need a full translation?
Foreign-language evidence needs a full, accurate translation whenever the court, a witness or another party has to rely on its exact wording. Disclosure lists can stay in the original language, but trial bundles cannot be understood by an English-speaking judge without translations.
In practice, full translations are needed for:
- documents a party relies on in statements of case, skeleton arguments or at trial;
- exhibits referred to in witness statements and expert reports;
- contracts, board minutes and correspondence whose exact wording is in dispute;
- foreign-language witness statements, which Practice Direction 32 requires to be translated and certified;
- documents served on parties abroad, where the service rules require a translation.
Agree a single set of agreed translations with the other side where you can. This avoids two competing translations of the same email reaching the judge.
What do the rules say about translating documents served abroad?
When a claim form or other document is served abroad through a foreign government, judicial authority or on a State, CPR 6.45 generally requires a translation into the official language of the country of service. The rule sets a specific format for the translator's confirmation:
"Every translation filed under this rule must be accompanied by a statement by the person making it that it is a correct translation, and the statement must include that person's name, address and qualifications for making the translation."
There are exceptions, for example where English is an official language of the country of service or the recipient is a British citizen, unless a convention or treaty requires a translation. Check the rule and any applicable service convention for the country concerned, and allow time for the translation in the service timetable.
How do you plan translation for a large disclosure exercise?
Large disclosure sets are usually handled in stages, so that expensive full translation is reserved for documents that matter. A typical plan moves from machine-assisted triage to human review to certified translation of a small subset.
- Profile the data. Identify the languages, file types (emails, chat exports, scanned PDFs, spreadsheets) and approximate word counts before you ask for a quote.
- Triage with search and technology. Use keyword searches in the original languages, agreed with a linguist, and technology-assisted review. Judicial guidance describes technology assisted review (TAR) as AI tools "used as part of the disclosure process to identify potentially relevant documents".
- Use machine translation only inside a secure platform, for orientation. Raw machine output can help reviewers decide relevance. It should not be quoted in evidence without human checking.
- Commission gist or summary translations. A gist translation is a short human summary of what a document says. It lets the legal team decide which documents need full translation.
- Order full translations of key documents. Translate in full the documents you will rely on or put to witnesses, with an independent check.
- Certify where needed. Add the translator's statement or certificate required by the relevant rule or direction.
Gist, full or certified translation: which do you need?
The right level of translation depends on what the document will be used for. Mixing levels within one case is normal and keeps costs proportionate.
| Level | What you get | Typical use |
|---|---|---|
| Raw machine translation | Automatic output, unchecked | Early relevance review inside a secure platform |
| Gist or summary translation | A human summary of content and key points | Deciding relevance and privilege; prioritising documents |
| Full translation | Complete, checked translation of every word | Documents relied on, exhibits, correspondence in issue |
| Full translation with translator's statement | Full translation plus a signed statement of accuracy | Witness statements, documents served abroad, filings |
How do privilege and confidentiality affect disclosure translation?
Every translator who reads disclosure material sees confidential and possibly privileged information, so the provider must be bound by confidentiality terms and secure working methods. Privileged documents should be flagged before they go for translation, and translators should never upload them to public tools.
Judicial guidance on AI warns that "any information that you input into a public AI chatbot should be seen as being published to all the world" (Courts and Tribunals Judiciary). The same caution applies to free online translators. Our article on confidentiality in legal translation covers NDAs, UK GDPR processor terms and ISO 27001.
Common mistakes with foreign-language evidence
The most expensive mistakes come from translating too much, too late or without a plan. These are the ones to avoid.
- Translating everything. Full translation of a whole data set is rarely proportionate; triage first.
- Keyword lists written only in English. Searches must use the original language, including spelling variants, abbreviations and transliterations.
- Losing the link between original and translation. Keep document IDs and Bates numbers on every translation so they can be matched in the bundle.
- Ignoring chat slang and mixed languages. Messaging data often mixes languages and informal speech; brief the translator on context.
- Using different translators for the same terms. Build a case glossary for names, product codes and technical terms.
- Leaving translation to the week before exchange. Book capacity early, especially for less common languages.
Recorded calls and voice notes need transcription before translation; see transcription for legal evidence.
How TranslationWorks can help with litigation and disclosure translation
TranslationWorks is a UK-based translation agency that translates foreign-language documents for disputes, including correspondence, contracts and exhibits, using native-speaking professional linguists in more than 150 languages. TranslationWorks is registered to ISO 17100, the international standard for translation services. Our legal translation service can provide summary and full translations, and our transcription service covers foreign-language audio. We are ISO 27001 registered and Cyber Essentials certified, which supports the secure handling of disclosure material. To get a free quote, tell us the languages, volume, file formats and deadline, and whether a translator's statement is required, and we will confirm what we can provide within 24 hours.
