SAFECHAIN™ Technical Build Blueprint for Developers

SAFECHAIN™ Technical Build Blueprint for Developers

Participation Integrity & Safeguarding Compliance Infrastructure

0) Product Definition

Core Product Goal

Create a compliance-grade system that documents participation risks, reasonable adjustments, safeguarding actions, and review outcomes with tamper-evident audit trails, enabling institutions to demonstrate procedural fairness and Equality Act alignment.

Explicit Non-Goals

  • Not a clinical record system

  • Not a case management system replacement

  • Not a “trauma narrative” database

  • Not decision-making automation that replaces human discretion

Data Minimisation Rule

Store functional participation data only:

  • risk indicators (non-diagnostic)

  • PCV level (descriptive)

  • adjustment options offered/selected

  • implementation evidence metadata

  • review outcomes

  • audit logs

1) System Architecture Overview

High-Level Components

  1. Identity & Access Service (IAM)

  2. Participation Intake Service

  3. PCV Assessment Service

  4. Adjustments Catalogue & Recommendation Service

  5. Safeguarding Log Service

  6. Inter-Agency Continuity Service (Handover)

  7. Compliance Reporting & Analytics Service

  8. Audit & Evidence Vault (tamper-evident logs)

  9. Admin Console + Member Portals

  10. Integration Layer (APIs/Webhooks)

Suggested Architecture Pattern

  • Modular monolith for v1 (faster delivery) with clear bounded contexts

  • Transition to microservices only when scaling demands it

2) User Roles, Tenancy, and RBAC

Tenancy Model

  • Multi-tenant with strict tenant isolation

  • Each tenant = Institution (Firm / Chambers / University / Agency)

  • Optional: sub-tenants (departments / teams) via “Org Units”

Core Roles

  • Survivor/Individual Member (REBUILD/MOPIT user)

  • Practitioner (solicitor/barrister/caseworker)

  • Safeguarding Officer / Participation Integrity Officer (PIO)

  • Supervisor/Manager

  • Institution Admin

  • Auditor (read-only, scoped)

  • System Admin (platform operator)

Permission Pattern

  • ABAC + RBAC hybrid:

    • RBAC for role permissions

    • ABAC for data scope (case assignment, department, consent flags)

3) Primary Domain Objects (Data Model)

3.1 Core Entities

User

  • id, tenant_id, role(s), status, MFA enabled, org_unit_id

Case (optional but recommended for structure)

  • case_id, tenant_id, external_case_ref (optional), case_type, status, created_by

Participant Profile (functional, non-clinical)

  • participant_id, case_id, relationship_to_case (party/witness), communication_needs, preferred_contact_modes

Participation Risk Profile

  • risk_profile_id, participant_id, created_at

  • risk_factors (array of enums)

  • triggers (array of enums, no narrative)

  • cognitive_load_score (0–10)

  • participation_notes (strictly controlled short text, optional, max length, monitored)

  • PCV level (PCV-1..PCV-4)

  • confidence_level (low/medium/high)

  • reviewer_id

Adjustment Catalogue Item

  • adjustment_id, category, description, legal_basis_tags (EqualityAct/Art6/PD12J), evidence_required, contraindications

Adjustment Plan

  • plan_id, participant_id, created_at

  • selected_adjustments [adjustment_id]

  • requested_by, approved_by, approval_status

  • scheduled_review_date

Safeguarding Log Entry

  • log_id, case_id, participant_id

  • action_type (offered/implemented/declined/escalated/reviewed)

  • adjustment_id (nullable)

  • reason_code (enum)

  • outcome_code (enum)

  • attachments_metadata (optional references)

  • created_by, created_at

Inter-Agency Handover Package

  • handover_id, from_tenant_id, to_tenant_id (or external org)

  • participant_id, case_id

  • contents_scope (which fields included)

  • consent_status

  • expiry_date

  • access_token_reference (time-limited)

  • status

Audit Event

  • audit_id, tenant_id, actor_user_id

  • event_type, entity_type, entity_id

  • before_hash, after_hash

  • timestamp, ip/device fingerprint

  • signature (HMAC / asymmetric signature)

Evidence Artifact Metadata (no raw docs unless required)

  • artifact_id, storage_pointer, type, created_at, created_by, checksum

4) PCV Model Implementation (Non-Diagnostic)

PCV Levels

  • PCV-1 Full participation

  • PCV-2 Reduced recall under stress

  • PCV-3 Dysregulation near adversarial triggers

  • PCV-4 Functional shutdown under adversarial engagement

Inputs (Functional)

  • observed participation difficulty (checklist)

  • self-reported participation stability (scale)

  • context triggers (checklist)

  • past hearing experience (checklist)

  • cognitive load score

Outputs

  • PCV level (1–4)

  • recommended adjustment categories (not mandates)

  • review interval suggestion

Important: PCV must be editable only by authorised roles, with full audit trace.

5) Adjustments Engine (Rules-Based v1)

Approach

  • Start with deterministic rules + catalogue mapping

  • Avoid “black box” ML in v1 (regulatory defensibility)

Example Rule Blocks

  • If PCV ≥ 3 → recommend: breaks, pacing protocol, remote attendance option, screen, advocate support

  • If trigger: proximity to alleged perpetrator → recommend: separate waiting area, screen, remote link

  • If cognitive load score ≥ 7 → recommend: simplified communication, written summaries, chunked questioning

Recommendation Output

  • Prioritised list with:

    • description

    • legal basis tags

    • evidence metadata requirements (if any)

    • implementation notes

6) Audit Trail Design (Tamper-Evident)

Requirements

  • Every write action generates an audit event

  • Audit events must be immutable:

    • append-only storage

    • hash chaining (block-style)

    • periodic anchoring (optional external notarisation)

Implementation Options

Option A (fast v1):

  • PostgreSQL append-only audit table + hash chain per tenant

  • Nightly anchor hash exported to cold storage

Option B (stronger):

  • Write-ahead audit log to WORM storage (e.g., S3 Object Lock)

  • Hash chain + signature

Audit Guarantees

  • Who changed what, when, why

  • Complete diff history on critical entities (Risk Profile, Adjustment Plan, Safeguarding Logs)

  • Exportable audit bundle for compliance reporting

7) APIs (Developer-Facing)

Auth

  • OAuth2 / OIDC

  • MFA required for privileged roles

  • Short-lived access tokens + refresh tokens

  • Tenant-scoped claims

Core API Groups

  1. /cases

    • POST create case

    • GET list/GET detail

  2. /participants

    • POST create participant profile

    • PATCH updates (limited fields)

  3. /risk-profiles

    • POST create assessment

    • GET history

    • POST review/approve

  4. /adjustments

    • GET catalogue

    • POST generate recommendations

  5. /plans

    • POST create adjustment plan

    • POST approve/decline

    • POST schedule review

  6. /safeguarding-logs

    • POST log entry

    • GET timeline

  7. /handover

    • POST create handover package

    • POST accept package

    • GET package status

  8. /reports

    • GET compliance summaries

    • POST export audit pack

  9. /admin

    • manage org units, roles, user provisioning, policy templates

Webhooks (Institution Integrations)

  • adjustment_plan.created

  • adjustment_plan.approved

  • safeguarding_log.escalated

  • handover.package.created

  • report.ready

8) UX Modules (Portals)

Individual Portal (REBUILD/MOPIT)

  • progress + tools library

  • participation blueprint builder

  • export personal plan (PDF)

  • privacy controls (what can be shared)

Professional Portal (CIPID)

  • case-based dashboards

  • risk profile assessment workflow

  • adjustment planning + documentation

  • audit view (read-only)

  • structured export bundles

Institutional Portal (RISE)

  • institution-wide dashboards

  • KPI monitoring

  • policy templates

  • annual review workflows

  • audit readiness reports

Admin Console

  • onboarding

  • role management

  • catalogue management

  • governance settings

  • retention policies

9) Reporting & Metrics

Core KPIs

  • adjustment offered rate

  • adjustment implemented rate

  • time-to-adjustment decision

  • review cycle adherence

  • escalation events frequency

  • participation stability indicators (proxy metrics)

  • complaint/appeal correlation (if integrated)

Report Types

  • Case-level Participation Integrity Report

  • Institutional Annual Participation Integrity Report

  • Equality Act Adjustments Summary

  • Article 6 Participation Assurance Summary

  • Audit Pack Export (signed)

10) Security, Privacy, and Compliance Requirements

Security Baseline

  • TLS everywhere

  • encryption at rest for all stores

  • secret management (vault)

  • MFA mandatory for privileged roles

  • device/IP anomaly logging

  • least privilege access

Privacy/UK GDPR

  • purpose limitation: participation safeguards

  • minimisation: no narrative storage by default

  • explicit retention policies per tenant

  • DSAR support: export/delete (where lawful)

  • data classification controls

Data Retention

  • default: 6 years for institutional logs (configurable)

  • individual course content: 12–24 months access retention

  • audit logs: immutable retention in compliance store

11) Integration Targets (Optional v2)

  • Court listing/hearing scheduling systems (where feasible)

  • Case management (firm CMS)

  • Document management (SharePoint, iManage)

  • Identity providers (Azure AD, Okta)

  • E-signature for consent workflows

12) Deployment Blueprint (Practical)

Suggested Stack (example)

  • Backend: Node/TS or Python (FastAPI) + PostgreSQL

  • Frontend: React + component library

  • Storage: encrypted object store for artifacts (with Object Lock option)

  • Queue: Redis/RabbitMQ

  • Observability: metrics + logs + tracing

Environments

  • dev / staging / prod

  • tenant-based feature flags

  • automated migrations

  • strict CI/CD with security checks

13) Build Roadmap (Engineering Milestones)

MVP (8–12 weeks build target)

  • IAM + tenanting

  • participation risk profiles + PCV

  • adjustment catalogue + basic recommendations

  • safeguarding logs

  • audit chain

  • basic reporting exports

  • portals: professional + admin (minimum viable UI)

v1 (next)

  • inter-agency handover packages + consent flow

  • institutional dashboards (RISE)

  • exportable annual report templates

  • WORM audit storage

v1.5–v2

  • integrations

  • advanced analytics

  • certification workflows

  • internationalisation

14) Acceptance Criteria (Definition of Done)

Functional

  • Create case → assess risk → generate adjustments → create plan → log implementation → export compliance report

  • Full audit history for each step

Compliance

  • Tenant isolation verified

  • Role permissions verified

  • All critical actions audit logged + tamper-evident

Security

  • MFA enforced for privileged roles

  • Pen-test remediation list completed

  • Encryption verified at rest and in transit

Privacy

  • DSAR export works

  • Data minimisation enforced

  • Retention policy applied

15) Developer Deliverables List

  1. Domain model + schema migrations

  2. API spec (OpenAPI)

  3. RBAC/ABAC policy definitions

  4. Audit chain implementation + anchoring strategy

  5. UI flows for assessment → plan → log → report

  6. Report generator + signed export pack

  7. Consent + handover module (v1 or v1.5)

  8. Admin console for catalogue + tenant settings

  9. Observability + incident logging

Version: v0.9 (build-ready)
© 2026 Samantha Avril-Andreassen. All rights reserved.
The term “Trauma-Blind Misinterpretation” is introduced and defined by Samantha Avril-Andreassen (2026) within the context of procedural fairness analysis in UK litigation.

Previous
Previous

UNMASKING JUSTICE Masquerade Ball Series 2026

Next
Next

SAFECHAIN™Participation Integrity & Safeguarding Compliance Infrastructure Version 1.0 White Paper