Translating Evidence: Why "Send Us the Whole Video" Is Costing You Thousands

If you've ever needed a video, audio recording, or WhatsApp thread translated for a legal case, you've probably had this experience: you send over the file, expecting a quick quote — and instead you get a price that makes you wince, followed by a turnaround time you didn't budget for.

The reason is almost always the same. The evidence you actually need translated is a few minutes long. The file you sent is hours long.

Why Raw Footage Costs So Much to Translate

Certified evidence translation isn't like translating a document. Every minute of audio or video has to be:

Listened to in full, often multiple times, by a linguist trained to work with legal and forensic material
Transcribed in the source language first, capturing pauses, overlapping speech, and unclear passages accurately
Translated into English (or the target language) with the same precision required for a written statement
Time-stamped and formatted so it can be cross-referenced against the original recording in court

None of that scales down just because most of a two-hour recording is silence, small talk, or irrelevant conversation. A translator working on evidence has to process the entire file to be sure nothing relevant was missed — which means a client sending a 90-minute phone recording, when the actual disputed conversation lasts four minutes, is often paying for 90 minutes of transcription and translation work.

This is one of the most common — and most avoidable — cost drivers we see in legal and evidential translation requests.

The Fix: Isolate the Evidence Before You Send It

Before commissioning a translation, it's worth taking the time — or asking your legal team, instructing solicitor, or the client themselves — to identify:

The specific time-stamps where the relevant material occurs (e.g. 00:14:22–00:18:47)
Which speakers or exchanges are actually in dispute, if the recording involves multiple people
Whether a summary translation would suffice for early case assessment, before committing to a full certified transcript-and-translation for court

Even simple free tools can clip a video or audio file down to the relevant segment without needing professional editing software. Sending us a 4-minute isolated clip instead of a 90-minute file can be the difference between a same-day turnaround and a two-week job — and between a modest fee and a four-figure invoice.

If you're not sure which parts are relevant, we're always happy to advise. Sometimes a quick provisional listen-through by one of our linguists, at a fraction of the full transcription cost, is enough to identify the sections worth transcribing and translating properly.

What Counts as "Evidence" in This Context?

We regularly translate:

Video evidence — CCTV footage, body-worn camera recordings, mobile phone videos
Audio evidence — recorded phone calls, voice notes, interviews, covert recordings
Written digital evidence — WhatsApp, SMS, and social media message threads submitted as exhibits
Interpreted proceedings — where a certified written record is needed after the fact

All of it is handled by qualified, ITI-affiliated linguists — never machine translation — with the option of a certified statement of accuracy where the translation needs to be submitted to a court, tribunal, or immigration authority.

A Quick Checklist Before You Send Us Your File

Have you identified the specific time range(s) that matter?
Can the file be trimmed to just those sections?
Do you need a certified translation for court, or a working translation for internal review first?
Is the audio quality good enough to transcribe accurately, or does it need enhancement first?

If you're unsure on any of these, send the full file and a brief description of what you're looking for — we'll advise on the most cost-effective way to proceed before any work begins, so there are no surprises on the invoice.

Get an Evidence Translation Quote

TranslationsInLondon Ltd works with solicitors, barristers, and individuals across 220+ languages, providing certified, human-only translation of video, audio, and written evidence for use in UK courts and tribunals.

Get in touch for a no-obligation quote — and if you're not sure how much of your footage is actually relevant, ask us first. It could save you a significant amount before you commit to the full job.