S21 Transcriber supports secure offline transcription of audio and video evidence, helping investigators search, review, and report spoken content without reliance on cloud services.
• Offline audio and video transcription • Search spoken content quickly • Maintain investigative control of evidence
S21 AutomateX helps teams automate repetitive digital forensic processing tasks, reduce manual workload, and support more consistent investigative processing workflows.
Investigators can only act on the evidence they can see
Unsupported formats, failed processing, and evidence that never becomes searchable can create critical blind spots within digital investigations.
Investigators may therefore make decisions without visibility of the full dataset.
S21 tools are designed to reduce those gaps - helping investigative teams review more evidence, surface relevant intelligence faster, and work with greater confidence.
Trusted by investigators working complex digital investigations.
Operational feedback from investigators and forensic specialists using S21 tools in active investigative environments.
"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
"The Semantics 21 team clearly put the customer first. It’s refreshing to feel that we have a company prepared to listen to our individual needs and create solutions which are fit for purpose."
D/Insp Milligan, Merseyside Police, UK
"VisionX is a powerful and vital tool to any Digital Forensic Analyst. I highly recommend it to be part of your forensic software toolbox. The S21 Auto-Categoriser quickly identifies the majority of CSAM images in your case and allows the Investigator to streamline the categorisation process."
Cst. Fasullo, Chatham-Kent Police, Canada
When digital evidence volumes keep growing, investigators need tools built for operational reality.
Support investigative teams with tools designed to review high volumes of digital evidence, prioritise what matters, and reduce unnecessary manual review burden.
