S21 Transcriber
Transcribe critical evidence
— fast, secure, offline
Quickly turn interviews, phone calls and covert recordings into clear, accurate transcripts. All fully offline to protect sensitive evidence.
Structured reports with speaker separation, multi-language support and easy export — helping you build stronger cases in murder, trafficking, CSAM, terrorism and major crime.
Overview
Eliminate the hassle of transcribing evidence — fully offline, highly accurate, and cost-effective.
Accurate, private, effortless.
S21 Transcriber makes it easy to turn interview recordings, phone calls, and video evidence into clear, reliable transcripts — no cloud, no data risk.
Whether it’s US/UK English or multi-language recordings, S21 Transcriber delivers fast, accurate results with speaker separation, advanced search, and intuitive editing.
✅ Fully offline — no servers, no leaks
✅ Built for law enforcement and major crime investigations
✅ Instant transcripts with no setup or training needed
👉 See it in action — watch our short video or request your complimentary trial today.
Finally a solution to simplify reporting on one of the most critical forms of evidence
A powerful offline, secure, and cost-effective tool built for major crime and law enforcement casework.
Handles interviews, calls and video from any source
Clear, searchable grid with tagging and filters
Speaker naming and diarisation
— see who said what, when
End-to-end workflow that aligns with ISO 17025
Export polished DOCX reports
— full or selected sections
Transcribe in native language or convert to US/UK English instantly
Fully offline
— no data leaks, no cloud exposure
Intuitive design — no training needed!
Cases Created in Just a Few Clicks
Create a new case in just a few clicks with the easy-to-use case setup. Simply add the media, fill in the case details and select the number of speakers. Then let S21 Transcriber do the rest.
Edit Speaker Names with Ease
Quickly update and manage speaker names within your transcripts to keep records accurate and organised. This will also ensure clarity in conversations, making it easier to follow dialogue and reference key individuals throughout your case.
Search and Flag Transcript Lines
Easily search through transcripts to find specific words, phrases or topics, then flag important lines for quick reference, helping you highlight key evidence, streamline reviews and keep critical details organised within your case.
Generate Reports
Create clear, professional reports from your transcripts in just a few clicks. Export flagged lines, speaker details, and full conversations into a structured document that can be shared, reviewed, or submitted as part of your case evidence.
See how S21 Transcriber is already helping investigators daily to solve Major Crimes across the world
Save time. Ensure accuracy. Protect privacy.
Deploy S21 Transcriber for offline, AI-powered transcription with investigator oversight — trusted by frontline officers and forensic specialists for reliable, evidential results.
Request a demo or sales information pack
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