●Legal · Litigation & investigations
Screen digital evidence before it enters proceedings.
Know which exhibits warrant forensic review. Witness returns a likelihood, a per-model breakdown and the signals it found, a strong first signal alongside expert analysis.
●Platform
Detect it. Explain it. Act on it.
Every scan returns the same three things: a result, the signals that produced it, and a decision you can route on.
01
Detect
Every file is scanned by independent models for images, video and faces, in the web tool, the extension or by API.
3 / 4 signals corroborateCalibrated likelihood
02
Explain
See which signals fired and how strongly. No single model decides; every result comes with its reasons.
Rule: likelihood ≥ 0.85 → Refer<3s
03
Route
Branch your workflow on the result. Clean items pass, flags go to review with a full audit trail.
●The problem
Digital evidence is getting harder to trust.
Courts are beginning to address AI-generated evidence, with proposed rules such as FRE 707 and amendments to FRE 901(c). Counsel need a way to evaluate media before relying on it or presenting it.
●What we catch
Five layers of analysis.
Flagged at the point of submission, before it reaches a reviewer.
01
AI-generated images
Pixel patterns, frequency artefacts and fingerprints consistent with diffusion models and GANs.
02
Face swaps in video
Frame-by-frame detection of replacement artefacts, blending boundaries and temporal drift.
03
Manipulated video
Splicing, frame insertion and temporal manipulation; inter-frame compression consistency.
04
C2PA provenance
Verification of signed Content Credentials, capture device to current file, when present.
05
EXIF & metadata
Mismatched timestamps, missing camera data, generator signatures and signs of stripping.
The pipeline
A detector for each kind of media.
Image, video and voice each have their own detector. Their findings come back as one clear answer you can act on.
Image
Diffusion, GAN and face-swap images from Midjourney, DALL·E, Stable Diffusion, Flux and Firefly.
LiveVideo
Face swaps across 32 frames and fully generated video from Runway, Kling, Veo and Pika.
LiveVoice
Cloned and synthesised speech in calls, notes and recordings.
LiveWhat you get
Each file is marked Clear, Refer or Review, with the likelihood, signals and audit ID behind it.
One answer●Important limitations
What Witness is, and is not.
Witness is a strong first signal. It tells you where to look harder.
Witness is
- A screening tool that identifies statistical patterns consistent with AI generation
- A likelihood with a per-model breakdown, never a certainty
- A way to decide which evidence to send to a qualified expert
Witness is not
- A Daubert-standard report
- A claim of court admissibility
- A replacement for chain-of-custody procedure or forensic examination
●Practice areas
Where it applies.
Screen exhibits before filing and flag manipulated media early in discovery, before it becomes a surprise at trial.
Evaluate photos, screenshots and video in custody disputes, protective orders and divorce proceedings.
Identify prosecution exhibits that warrant further forensic examination.
Triage whistleblower evidence, complaint documentation and digital communications at volume.
●How it works
From submission to decision.
Upload evidence
Images or video through the web tool. No installation required.
Multi-model analysis
Independent detectors check fingerprints, frequency, face-swap boundaries and metadata.
Review the breakdown
A 0–100 likelihood and the signals behind it, per model.
Document & refer
Record screening as due diligence and refer flagged media to your expert.
●Integration
Three ways in.
Start with the web app.
Scan in the web app or Chrome extension today. The REST API and MCP server for your AI agents are coming soon. Same detectors, same result, same audit trail.
Web app
AvailableUpload in the web app. Images, video and voice, up to 50 MB. Full results in seconds.
Chrome extension
AvailableScan any image or video from inside the tools your team already uses. No download, no upload.
API
SoonSingle scans, batch jobs and webhooks. Structured JSON with result, likelihood, signals and audit ID.
curl -X POST https://witness.vision/api/v1/detect \ -H "Authorization: Bearer $WITNESS_KEY" \ -H "Content-Type: application/json" \ -d '{"media_url": "https://…/exhibit_14_deposition.mp4"}' → 200 OK · 412ms result: ai_generated · 0.89
●Why Witness
Built to be checked.
We say what the system does, what it returns and where its limits are.
Detection built per signal
Specialized models per signal, so you get more coverage and fewer false positives than one classifier.
Reasons, not just a score
Every result shows the signals behind it and where in the file they fired.
Analysed, then gone
Media is never stored, shared or used for training.
Provenance, when it exists
Reads Content Credentials from capture device to current file.
●Pricing
Priced around your volume.
No minimums and no long-term contracts. Tell us your volume and we will quote within one business day.
Free
$0
- 20 image scans a month
- 2 min video/voice total
- Full heatmaps
- Generator attribution
- EXIF/C2PA/SynthID
- Web and Chrome extension
●Pro
$15 / month
- 1,000 image scans a month
- 15 min video + 10 min voice
- Everything in Free
- Faces and face-swap specialist
- Scan by URL: paste any link
- Email support
Enterprise
Custom
- Volume pricing
- Everything in Pro
- SSO and audit logs
- Dedicated support
- Custom SLA
- On-premise option
●Explore
One engine. Every surface.
The same detection, result and audit trail across every team that handles media.
Detection
AI image detector
Find out if an image was made by AI.
Explore →Detection
Face swap detection
Find out if the face in a photo or video has been replaced, reenacted or lip-synced.
Explore →Detection
C2PA checker
Read the Content Credentials inside an image or video: who signed it, what captured it, and every edit since.
Explore →Detection
AI video detector
Find out if a video was generated by AI or contains a face swap.
Explore →Product
Chrome extension
Scan media on any site, social feeds, news, claims portals, case files, and get a result in the side panel..
Explore →Can AI-generated evidence be detected?
AI-generated media leaves statistical patterns detection models can identify. Detection is probabilistic, so results should inform further investigation, not replace expert testimony.
Is Witness admissible in court?
Witness is a screening tool, not a certified forensic instrument, and does not currently produce Daubert-standard reports.
What formats are supported?
Images (JPEG, PNG, WebP) and video (MP4, WebM), plus C2PA and EXIF inspection.
Can opposing counsel challenge results?
Yes. That is why we recommend pairing Witness screening with expert forensic analysis for any evidence presented in proceedings.