S21 AI Describe
Understand explicit imagery without prolonged exposure
When investigators are required to describe disturbing material, the burden is real — and it compounds.
S21 AI Describe helps investigators understand and document the content of images and video frames quickly and accurately, while significantly reducing repeated viewing of explicit material.
Built specifically for CSAM and safeguarding investigations — and usable across all digital media cases.
Why this capability matters
When material must be described, exposure increases
In CSAM and explicit media investigations, one of the most demanding tasks is not finding material — but repeatedly viewing, interpreting, and writing detailed descriptions of it.
That cognitive and emotional load is unavoidable in safeguarding work — but it does not need to be multiplied.
Reduce repeated exposure
Minimise prolonged and repeated viewing of disturbing imagery while still producing detailed, structured descriptions.
Consistent, structured understanding
Move from subjective, manual descriptions to clear, repeatable outputs that support investigative and evidential needs.
Protect investigator wellbeing
Support more sustainable investigative practice without removing investigator control or judgement.
S21 AI Describe – One focused capability. One clear investigative outcome.
See how this works in practice.
Generate clear, consistent descriptions from imagery — without prolonged exposure.
How S21 AI Describe works
Investigators are often required to manually view and describe explicit imagery in detail for safeguarding, intelligence, and evidential purposes.
S21 AI Describe is a standalone, offline investigative tool that analyses images and video frames and produces clear, structured descriptions of visual content — including explicit material — without requiring repeated manual interpretation.
The tool:
Processes individual images or selected video frames
Produces consistent, context-rich descriptions
Highlights key visual details investigators may wish to explore further
Descriptions can be used to support:
Case notes and reports
Further investigative searches
Identification of patterns, locations, or behaviours
S21 AI Describe works alongside your existing forensic tools. Media can be exported from any system and analysed directly — with no changes to your current workflow.
Fully Offline & Secure
Sensitive imagery and investigative material never leaves your environment.
Designed for investigative reality
Built for CSAM, safeguarding, and serious crime investigations — not generic image captioning.
No specialist infastructure required
Runs on existing workstations without servers, cloud services, or complex deployment.
S21 VisionX – where these capabilities work at full investigative scale
The offline investigative platform these tools were built inside.
AI Describe has been used daily inside S21 VisionX for over a year and is now available as a standalone tool due to investigator demand.
Request a demo or sales information pack
Please complete the form with valid company or agency information, including a company or agency-issued email address. We will need to confirm your credentials before issuing a free trial licence.