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S21 VisionX

Organising evidence is not the same as understanding it.

Investigators are often faced with thousands or millions of files. S21 VisionX helps teams surface priority material faster and focus investigator attention where it matters most.

S21 VisionX is an investigator-led forensic intelligence platform designed to analyse high volumes of image and video evidence, surface visual connections, and support victim identification workflows.
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Overview

When evidence volumes explode, manual review breaks down.

Investigators reviewing high-volume datasets face delays, repetitive manual review, missed connections, and difficulty identifying the material most relevant to safeguarding and investigative decisions.

S21 VisionX helps teams prioritise evidence, surface visual intelligence earlier, and move from overwhelming datasets to structured, explainable review.

Surface priority material faster

Help investigators identify the material most relevant to safeguarding and operational decision-making earlier in the review process.

Reduce repetitive review

Reduce unnecessary manual review across high-volume image and video datasets while keeping investigators in control.

Review and understand large datasets

Support investigative teams reviewing thousands or millions of files within large-scale operational environments.

Reduce repeated exposure

Help reduce unnecessary repeated exposure to traumatic material during prolonged investigative review workflows.
See how it works in 5 minutes

Join a former law enforcement officer for a practical walkthrough of the tool and features designed to support real-world investigations

Fully Offline & Secure

Protect sensitive evidence and eliminate the risks of cloud-based AI learning from your victim’s images and videos – and potentially exploiting them further. S21 VisionX runs completely offline, ensuring no data ever leaves your environment and removing all exposure to third-party access or breaches.

Built for Everyone — from Frontline Officers to Lab Experts

S21 VisionX is easy to use for simple frontline users and powerful enough for advanced lab analysts. Whether you’re on the front line or in the lab, it provides the right tools to get the job done.

No Servers or Specialist Hardware

Deploy instantly without complex infrastructure. S21 VisionX runs efficiently on standard workstations or existing networked machines – no dedicated servers or high-end hardware required.

"After switching to Semantics 21, we identified more victims in 10 months than in the previous five years combined. Their team worked closely with us to customise the platform for our workflow and legal requirements."

D/Cst. Frawley
Kingston Police, Canada

How investigators use VisionX to surface intelligence faster

A structured review environment designed to help investigators move from large volumes of image and video evidence to prioritised, explainable investigative review.

We’re creating an open community of collaboration with other industry experts​

S21 VisionX fully supports evidential data exchange with leading digital forensic tools, ensuring seamless integration with your existing workflow. Compatible platforms include X-Ways Forensics, Cellebrite, Magnet Forensics (AXIOM, IEF, Witness), GrayShift, Griffeye, Belkasoft X, Oxygen Forensics, OpenText EnCase, MSAB XRY and XAMN, Exterro, GetData, and many others. With S21 VisionX, you can review, categorise and identify victims efficiently — and easily export results back to your tool of choice for further analysis or reporting.

What investigators can now surface earlier

S21 VisionX helps investigators identify material linked to safeguarding priorities, victim identification workflows, and active investigative decisions earlier in review.

Identify likely victim-related material earlier, supporting prioritisation and safeguarding decisions.

The S21 Find Victims workflow helps investigators conduct victim identification searches more efficiently across large image and video datasets.

Investigators can provide limited known reference material, allowing S21 VisionX to surface visually related files that may support victim identification and safeguarding workflows.

Designed to help investigative teams prioritise victim-focused intelligence earlier during high-volume investigative review.

Automate CSAM categorisation while keeping investigators in control.

S21 CSAM Auto-Categoriser helps investigators process high volumes of image and video material by applying structured CSAM categorisation to support faster review and prioritisation.

Designed for operational use inside S21 VisionX, it helps teams reduce repetitive manual categorisation while maintaining investigator oversight, review, and decision-making.

• Apply structured CSAM categorisation at scale
• Reduce repetitive manual categorisation
• Support prioritised investigator review

Identify schools from partial imagery, badges, low-quality captures and visual references.

S21 School Badge Lookup helps investigators identify schools from partial logos, uniforms, crests and badge imagery appearing within digital evidence.

Designed to support victim identification workflows, investigators can compare visual references against school badge datasets covering the UK, Canada, USA, Ireland and Australia, with additional international regions planned.
Secure, Flexible Investigation Technology

Built for high-volume image and video investigations

Designed for investigative teams operating under high-volume review pressure, safeguarding priorities and operational time constraints.

CSAM Auto-Categoriser

Apply structured CSAM categorisation across high-volume datasets to support faster review, prioritisation and reduced unnecessary exposure.

The S21 CSAM Auto-Categoriser helps investigators surface priority material earlier, reduce repetitive manual review and focus investigator attention where it matters most.

Structured case workflow

Follow structured investigative workflows designed to support consistency, accountability and operational review.

Review prioritised outputs, maintain structured progression across casework and support consistent investigative documentation.

Surface faces and body parts across large investigative datasets.

Filter and review detected faces and body parts across high-volume image and video evidence to support faster investigative review and prioritisation.

Surface visually related material faster, compare appearances across datasets and support more structured investigative understanding of potential connections.

Deepfake detection

Assess whether imagery or video content may contain AI-generated or manipulated material.

Support investigative assessment of synthetic and manipulated media using forensic indicators designed to inform investigator review and evidential assessment.

AI location prediction

Analyse visual indicators within imagery to support geographic assessment and investigative location analysis.

Designed for offline investigative use, the workflow analyses visual features within imagery without relying solely on metadata or EXIF information.

Visual search by object or scene

Search for objects, environments and visual scenes across large investigative datasets.

Filter results to support faster review, prioritisation and investigative exploration across high-volume evidence.

Colour search

Select colour ranges to surface visually relevant image and video material across investigative datasets.

Supports visual pattern analysis, prioritisation and faster investigative review.

Global victim identification intelligence at unprecedented scale.

The S21 Global Alliance Database contains over 3.5 billion law-enforcement-contributed intelligence records from trusted partners worldwide, helping investigators support victim-identification workflows, uncover cross-case links and surface critical investigative intelligence at global scale.
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Built for Demanding Investigations

Where categorisation alone is not enough

Organising evidence is not the same as understanding it. Streamline evidence analysis, identify key connections and accelerate investigative workflows.

Victim Identification

Victim identification made faster and simpler — because Every Victim Matters

S21 VisionX reduces the challenges of victim ID with automation, AI and simple workflows, so you can safeguard victims sooner.
  • Automates victim identification before categorisation.
  • Runs hundreds of automated searches in seconds, delivering clear, real-time results.
  • Supports investigations with file connections, facial analysis, offline mapping, POI and school badge lookup.
  • Integrates with NCMEC Cybertips, Project Arachnid, Project VIC, and UK CAID, powered by S21 VisionX.
  • S21 VisionX combines unmatched database scale, AI accuracy and trusted workflows, so you can act faster than with conventional tools.
  • Integrates victim identification with the new Case Checklist, simplifying your workflow and helping you find victims more easily.

Speed

Import over 1 million images & videos per minute, ready to categorise

The faster you find a victim, the sooner you can safeguard them - that's why speed matters.

  • Import multiple exhibits (phones, computers etc.) into a single analysis.
  • Save hours, or even days, with no requirement for pre-processing.
  • Benefit from greater processing control by using flexible processing options per exhibit.

AI

Reduce manual work and decrease case processing time

Deploy AI as an extra set of eyes to find critical content faster and with greater confidence. S21 VisionX combines AI accuracy and scale so investigators can trust every result.

  • Automatically detect CSAM with advanced AI analysis.
  • Find persons of interest using facial and visual search.
  • Generate instant AI powered image descriptions.
  • Detect manipulated or AI generated content.
  • Discover evidence through OCR and QR analysis.

Categorisation

Beyond categorisation - built for speed and accuracy

Categorisation should be simple and autonomous - so you can focus on safeguarding, not admin.

  • Automatic CSAM image and video categorisation powered by AI
  • Smart workflows group and order images by relevance
  • Customisable grading with features like Autoscroll, Auto Refresh and Hotkeys
  • Intelligence databases that pre-categorise media that’s already been seen, cutting manual work and speed up review

Interface

Simple by Design, Powerful in Practice

S21 VisionX is built to be simpler, clearer and easier to navigate than previously, so you can focus on the investigation, not the software.
  • Clean, intuitive interface focused on the grid and what matters most.
  • New case checklist with step by step guidance so nothing gets missed.
  • Streamlined workflow with fewer clicks, faster progress and greater clarity.
  • Distraction free design that is easy to learn and effortless to use.
  • Improved case setup window makes creating cases simple and integrates Find Victims seamlessly.
  • New report wizard provides a cleaner, easier way to build and navigate reports.
  • All your favourite features and buttons remain, now neatly organised in menus instead of cluttered on screen.

Intelligence

Turning intelligence into action — with S21 VisionX

Intelligence should be easy to access, quick to develop and simple to share — that’s what S21 VisionX delivers.
  • Supports the S21 Global Alliance Database, the world’s largest community-driven CSAM and Counter-Terrorism database.
  • Supports NCMEC Cybertips, CPS, Project Arachnid, ICSIE, NSRL, Project VIC and UK CAID.
  • Integrates intelligence databases to enhance investigations.
  • Contains easy-to-share intelligence including notes, tags and device details to help identify more victims.
Unlike conventional tools, S21 VisionX makes intelligence practical, connected and ready to support safeguarding.

Team mode

S21 Pool Mode — team grading in real time

Together you can find victims faster, support mental wellbeing and close cases sooner.
  • Share and review analyses easily with team members
  • Review cases remotely across buildings or sites
  • Deploy workloads across multiple computers for distributed AI processing
  • Generate portable cases for offline or offsite review
S21 VisionX’s Pool Mode lets your team work together seamlessly — wherever they are.

Wellbeing

Organisations have a duty to protect staff — S21 VisionX is here to help

Everyone deserves protection from harm in their work — exposure to CSAM can be life-changing for both the victim and the investigator.
  • In-app activity and exposure monitoring for individual review
  • In-app safety mechanisms including privacy mode, break times, thresholds and image blurring
  • Management console to monitor a colleague’s exposure
  • Decompression videos with green imagery and ASMR
  • AI Describe automatically interprets imagery so investigators are not forced to describe harmful material, reducing trauma and supporting wellbeing.

Enhancement

State-of-the-art image and video enhancement

S21 VisionX helps investigators gain deeper insight and reveal cues others miss.
  • Enhance poor-quality, distorted or damaged image and video media
  • Reveal cues through recolouring, upscaling and deblurring
  • Predict and visualise age progression or regression by morphing images to a chosen age
  • Annotate, blur, watermark or crop media segments for disclosure

Reporting

Create customised, disclosure or comprehensive reports

With S21 VisionX’s comprehensive yet fully customisable reporting, you can deliver polished reports with ease.
  • Generate DOC, PDF or HTML reports easily
  • Include or exclude information as needed
  • Generate reports with the new easy-to-use report generation wizard
  • Generate video overviews, interactive reports, add encryption and more
A typical investigative workflow with S21 VisionX

How investigators work when manual review is no longer viable

S21 VisionX supports investigators through every stage of large-scale image and video analysis, helping teams organise evidence, surface what matters most, and focus investigative effort where it has the greatest impact.
1

Import image and video evidence

Load large collections of images and videos from digital evidence sources into a single investigative workspace.
2

Automatically group visually similar material

S21 VisionX clusters related images and videos together, reducing repetitive manual review.
3

Surface key material quickly

Prioritisation tools help investigators identify the most relevant or high-risk content first.
4

Explore connections across the dataset

Reveal relationships between files, helping investigators understand patterns and context within the evidence.
5

Navigate large datasets efficiently

Structured views and grouping allow investigators to move through thousands or millions of files without losing context.
6

Focus investigator attention where it matters most

By reducing noise and duplication, investigators can concentrate their attention on the evidence that requires human judgement.
S21 VisionX + S21 AutomateX

VisionX forms part of the intelligence layer across S21 investigative workflows.

S21 AutomateX automates X-Ways Forensics to create a fast, comprehensive and automated CSAM solution. From multi-disk imaging, carving, analysis and extraction, through to case creation and AI processing in S21 VisionX — all in one seamless workflow.

Designed to operate across interconnected investigative and forensic workflows.

S21 VisionX

Built for investigators who need speed, accuracy, and protection.

S21 AutomateX

Save time, money and resources with easy automation for multi-disk imaging, data carving, analysis and media review.
Learn more about S21 AutomateX

Used in investigations where delays and missed connections have consequences.

Designed for investigations where visibility, prioritisation and review speed directly affect operational decision-making.

Operational impact across real investigations

See how investigative teams are using S21 VisionX to analyse evidence, identify connections and progress complex cases.
View all case studies

If investigators cannot surface relevant material quickly, critical intelligence may remain hidden inside high-volume evidence.

Power your investigations with VisionX technology built for high-volume evidence, priority material review and faster investigative intelligence.
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