Choosing software
AI tools for criminal-defense discovery review: how the options compare
Five kinds of tools, what each one takes in and produces, and the questions that separate them.
On this page
The short answer: choose by the evidence you have most of. If the bottleneck is hours of body-camera video and jail calls, transcript-first tools are built for that. If it is a whole production of mixed files, a tool that reviews every file type together and shows its coverage matters more. General AI tools can work across multiple files; evaluate how your chosen workflow shows review coverage and supports source verification.
Vendor descriptions were reviewed on October 13, 2026; the general AI comparison was updated on October 14, 2026. Products change, so confirm details with each vendor. DiscoRev publishes this guide and is one of the tools compared.
The main options
| Tool | Built around | What goes in | What comes out |
|---|---|---|---|
| DiscoRev (beta) | Reviewing a whole criminal discovery production | Documents, scans, Office files, email, photos, audio, video, ZIP, and GPX from a connected Box folder | Case report with charges, people, timeline, and findings linked to a page or timestamp, plus a list of what was not covered |
| JusticeText | Audio and video evidence for defense attorneys | Police footage, jail calls, and other recordings | Searchable time-stamped transcripts, timelines, flagged moments, clips, and redaction |
| Reduct | Multimedia discovery review | Body-worn camera, jail calls, surveillance video, and interviews | Searchable transcripts, multi-camera sync, and keyword search that jumps to the moment |
| CaseMark body-camera workflow | Document workflows for lawyers | A body-camera transcript (PDF, TXT, or DOCX), with optional reports and dispatch logs | A structured summary with timestamp citations |
| General AI chat | General-purpose assistance | Files you upload into a conversation or project | Answers, summaries, and drafts; verify per-file review coverage and source references in the chosen workflow |
Sources for the other tools: JusticeText, Reduct, and CaseMark’s body-camera workflow.
If most of your discovery is video and calls
Transcript-first tools are designed around recordings. JusticeText describes searchable, time-stamped transcripts, timelines, and tools to redact, clip, and sync video for trial. Reduct describes keyword and fuzzy search across transcripts and syncing several camera angles into one timeline. CaseMark’s workflow starts from a body-camera transcript rather than the video itself.
Ask how each tool handles overlapping speech, unclear speakers, and the difference between elapsed playback time and the clock shown on screen. Our body-camera review guide lists the checks worth running on any transcript.
If your discovery is a whole production
A typical delivery mixes reports, scanned forms, photos, phone exports, and recordings. The risk is less about any single file and more about what nobody opened. For this job, look for three things: support for every file type you receive, a citation for each finding that opens the exact page or timestamp, and a coverage list that names files the tool could not read.
Where general AI chat fits
General assistants can summarize and compare multiple files you are authorized to share. For example, ChatGPT Projects supports uploaded files and project context. Those capabilities alone do not establish that every file was fully reviewed. Test whether the chosen workflow records per-file review coverage, flags omissions, and provides source references you can verify. Confidentiality depends on the account and its terms. Florida Bar Ethics Opinion 24-1 discusses lawyers’ obligations when using generative AI.
Five questions that separate the options
- Which of our file types does it accept, and what happens to the ones it cannot read?
- Can a reviewer open the exact page or timestamp behind a finding?
- Does it distinguish exact quotes from summaries?
- What happens when new discovery arrives?
- Do we see the cost before anything runs?
The guide to where discovery review fits explains how to run a small, authorized test before choosing.
Where DiscoRev is strong, and where it is not
DiscoRev reviews the whole production, links findings to a page or timestamp, lists what it could not cover, and shows an estimate before anything runs. It is in beta for Florida criminal-defense firms, connects through Box only, does not yet open DVD or RAR and 7z archives, and reviews video at one frame per second with closer checks on key moments, so brief events between frames can be missed. Its beta focuses on review and reporting rather than exhibit preparation. See how DiscoRev works.
The printable checklistFive review steps on one page. No email required.OpenCommon questions
What is the best AI tool for reviewing body-camera footage?
It depends on the job. Transcript-first tools such as JusticeText and Reduct are built around audio and video. If the footage is one part of a larger production, look for a tool that reviews every file type together and reports what it did not cover.
Can I use ChatGPT for criminal discovery review?
ChatGPT can work with multiple uploaded files and use project context. Check whether your workflow records which files were reviewed, identifies omissions, and provides source references you can verify. Confidentiality depends on the account and its terms. Review your professional obligations, including Florida Bar Ethics Opinion 24-1, before uploading client material.
How is DiscoRev different from transcript-first video tools?
DiscoRev reviews the whole production, including documents, scans, email, photos, audio, and video, and links each finding to a page or timestamp. Transcript-first tools go deeper on recordings, with features such as multi-camera sync, clipping, and redaction.