Architecture

Three connected surfaces

E-SAF spans three components that work together to coordinate a public-safety response. The consumer app gives the public a trusted way to signal. The Control Room interface gives trained operators the tools to respond. The Analytics Portal gives partner organisations visibility into the alerts and outcomes within their jurisdiction.

ALERT · LOC · CHAT AUDIT · METRICS CONSUMER APP Seren Public-facing iOS · Android OPERATOR INTERFACE E-SAF Control Room Real-time response PARTNER PORTAL Analytics Portal Tier-based access PUBLIC OPERATORS PARTNERS PLATFORM ARCHITECTURE
Seren mark Seren Consumer app

Seren is the public-facing app that lets someone signal for help discreetly. Two alert tiers — concern and immediate threat — route to the appropriate response. Audio capture, location sharing, and chat with the operator are all available from inside the app.

  • Two-tier alerting — Blue for concern, Red for serious threat
  • Discreet signal — no flashing screens, no audible alerts
  • Audio capture preserved for evidence where needed
  • Real-time location sharing with the operator
  • Chat with the responding operator throughout the alert
  • Account-level identity verification
Seren home screen showing map, Blue Alert and Red Alert buttons
Seren Red Alert in progress with chat to operator
Seren · iOS / Android v1.0 · UK release
E-SAF Control Room

The Control Room interface is the operator's working surface. When an alert arrives, operators see the alert details, the user's location on a live map, the nearest cameras, and a chat channel with the user. The interface enforces process: every action is logged, every decision is auditable, and supervision is structured into the workflow.

  • Real-time alert reception and triage
  • Live map with user location and nearby cameras
  • Operator chat with the alerting user
  • State-machine-enforced response workflow
  • Supervisor oversight and escalation paths
  • Full audit trail of every alert and response
E-SAF Control Room with active Blue Alert: live map, user video, operator chat
Control Room · Live Alert BLUE · 00:44
Analytics Partner Portal

Partner organisations — local authorities, transport operators, CCTV partnerships — access E-SAF through a web portal that gives them visibility into the alerts and outcomes within their jurisdiction. Aggregate data, evidence packs for incidents, and operational metrics are all available. Tier-based access controls match commercial agreements.

  • Jurisdiction-scoped alert and outcome visibility
  • Evidence pack generation and download
  • Operational metrics and reporting
  • Multi-user access with role-based permissions
  • Tier-based feature gating — Essentials, Standard, Pro, Enterprise
E-SAF Analytics Portal JURIS · HERTS-CCTV-001 DASHBOARD Overview Alerts Evidence Outcomes Metrics Users ALERTS · 30D 247 +18% vs prior period RESPONSE · MEDIAN 11s SLA · 30s EVIDENCE PACKS 12 Generated this month ALERT VOLUME · ROLLING 30D
Analytics Portal · Overview Tier · STANDARD
Compliance & accountability

Built for accountability

E-SAF processes sensitive personal data and operates in a sector that requires both speed and accountability. The platform is built with GDPR compliance, audit immutability, and operational safeguards embedded throughout.

UK GDPR compliance with documented lawful bases for every data flow
ICO-aligned retention and deletion policies
Immutable audit trail of every alert, action, and access event
Two-person rule for sensitive recovery operations
Identity verification waterfall for high-trust accounts
DBS-checked recovery operations staff
Talk to us

Procurement, partnership, or technical questions — we're listening.

If you operate a CCTV partnership, run public-safety infrastructure, or assess platforms for procurement, we are happy to walk through the platform in detail.

Signal One Safe Ltd · UK Companies House 17008376