Law enforcement transcription

Work the backlog in text instead of real time

A single case can generate dozens of hours of recorded audio and video, and listening to it at playback speed is the bottleneck.

A detective who needs one admission from a three-hour interview has to sit through the other two hours and fifty minutes to find it. Multiply that across an active caseload and the backlog writes itself: interviews stack up faster than anyone can review them, review happens where someone remembers to look, and the rest of the file stays dark.

Search the whole case file at once

Upload the recordings in a batch, straight from a computer or from Google Drive, Dropbox, or OneDrive, and each one comes back as searchable text while the case is still moving. Detectives search by name, address, date, or phrase across every recording in the file, so a detail mentioned once in hour four surfaces in seconds, and a nickname heard in a field interview and again in an interrogation two weeks later becomes a search instead of a lucky catch.

Every line carries its timestamp

Click a line and the player jumps to that exact moment in the recording, so checking a quote against the source takes seconds, not another listening pass. When a statement matters, the citation is already attached: what was said, who said it, and the minute and second where it sits in the recording.

Reports written from the record

The same transcripts support report writing. Instead of reconstructing a statement from notes and memory, officers quote the verified line and cite the minute and second where it was said, so supplements and warrant affidavits come from the record, not from recollection.

The transcript is a working draft for investigative review, not a substitute for the recording. The recording remains the record, and the draft is how your team finds the right thirty seconds of it.

Police interview transcription with every speaker labeled

Interview-room and interrogation recordings are long, multi-party, and full of overlapping speech, so Sonix separates the voices automatically.

Each voice gets its own speaker label across the entire session. Your team renames the labels to the detective, the suspect, and counsel, and merges any duplicates in one click, so a six-hour interview reads as an organized exchange instead of a wall of text.

Verbatim when exact wording matters

For sessions where the exact words are the point, verbatim transcription keeps the false starts, repetitions, and filler words that a cleaned-up transcript would drop. A hesitation before an answer or a sentence abandoned halfway can matter to the people reviewing the session later, and a verbatim draft preserves it.

Six hours, skimmed in minutes

Once verified, the transcript works where the recording cannot. Detectives skim a six-hour session in minutes, leave notes on the exchanges that matter, and export to DOCX or PDF for the case file or for the prosecutor who receives it next.

A fast draft, checked against the audio

AI produces a fast, timestamped draft, not a certified record. Interview rooms have crosstalk, mumbling, and distance from the microphone, and the AI will mishear some of it. That is why every line is synced to the audio: officers click a sentence, hear that moment, fix what is wrong, and sign off on a version the department has checked itself.

Bodycam footage, reviewed as text

Reviewers search a shift-long body-worn camera recording for a statement instead of scrubbing the video to find it.

Upload the footage and Sonix transcribes its audio track, with every line timestamped to its moment in the video. Speaker labels separate each voice, and a records clerk or detective names the officers, subjects, and bystanders and checks the hard passages in the editor before anyone quotes them.

Bodycam audio is genuinely hard: wind, radio traffic, shouting, and muffled microphones mean accuracy varies scene by scene, and chaotic stretches will need human correction against the video. Sonix transcribes the audio track only. It does not analyze video frames.

The full bodycam analysis workflow

911 call transcription that rebuilds the timeline

Emergency calls and dispatch audio become timestamped transcripts that read as a minute-by-minute reconstruction of an incident's opening.

When several people call about the same event, read their transcripts one after another to compare what each caller reported, when, and in what words, or search all of them at once for a street name or a description. Caller and dispatcher get separate speaker labels automatically, so the exchange reads cleanly even when the call itself does not.

Panicked callers and poor phone audio lower accuracy, so staff verify the hard passages against the recording before anything is quoted. The transcript is the review tool, and the call itself stays the record.

The full 911 call analysis workflow

Witness interviews in 54+ languages, the same day

A statement given in Spanish, Mandarin, or Tagalog should not sit untouched until an interpreter is free to re-listen to all of it.

Sonix transcribes audio in 54+ languages, and AI translation turns the transcript into an English working draft in minutes, with the original text preserved alongside it. That gives investigators something they rarely have early in a case: a same-day understanding of what a witness or suspect actually said, searchable like every other transcript in the file.

Interpreted interviews work too. The interpreter and the original speaker each get their own speaker label, so reviewers can follow the original answer and its interpretation in sequence instead of untangling them by ear.

Machine translation is an investigative aid. For court filings, formal statements, and testimony, agencies still use certified interpreters and translators, and nothing here replaces them. Sonix gets your team to knowing what was said, fast, and the certified version follows through your normal channels.

Bring your compliance checklist before rollout

Agency compliance requirements go beyond any vendor's standard checklist, and they differ by state, by agency, and by what the recordings contain.

The controls above are how Sonix runs today, and two more details matter to agency IT. All data is stored at AWS in the USA, and Enterprise plans add audit logs that record who accessed, changed, or shared each file, with timestamps and user attribution.

Bring your department's compliance checklist, security review questions, and any data processing agreement to legal sales, and walk through them with your IT staff before rollout. That conversation up front is faster than discovering a gap after the files are uploaded, and the Sonix security overview covers the full stack.

Built for the rest of the case, too

Both sides of a case often end up working from the same recordings, so the transcripts your agency makes rarely stay inside it.

The agency transcribes what its cameras and interview rooms produce, and the attorneys who receive that material in discovery transcribe it again to review and quote. Sonix supports every seat at that table.

Prosecutors and DA offices

The transcripts your agency produces become the discovery prosecutors review, and the cleaner they arrive, the fewer calls come back to your records division. Sonix supports that side of the file as well, including jail call analysis at scale.

Transcription for prosecutors

Investigators

Surveillance audio, field interviews, and claimant statements are transcribed and searchable the same day they are recorded, for investigation teams inside and outside government.

Transcription for investigators

Every legal workflow Sonix supports, from defense discovery review to court reporting and private investigations, is mapped on the Sonix Legal overview.