Saraswathy← Back to workUI/UX Case Study
Case Management Platform
Secure Workspace for Enforcement Officers
A secure, multi-workflow platform for income-tax and criminal-law-enforcement officers — unifying evidence, multi-location case tracking, and officer handoffs into one auditable workspace.
- Role
- UI/UX Designer
- Platform
- Web App (desktop-first)
- Category
- Enterprise · GovTech · Security
- Type
- 0→1 product design
Problem Statement
Enforcement officers run complex, long-running investigations spread across teams and locations. Evidence lives in scattered files and inboxes, handoffs happen over email, and there is no single source of truth. Legacy tools are slow and error-prone, while the sensitivity of the data demands strict access control and a defensible audit trail at every step.
This leads to
- Slow case resolution
- Broken evidence trails
- Compliance & audit risk
- Poor cross-team coordination
- Painful onboarding for new officers
Design Challenge
How might we give enforcement officers a secure, unified workspace to manage cases, evidence, and handoffs across locations — without slowing the investigation down?
Proposed Solution
A role-based case management platform with a single case record at its core: structured evidence ingestion with chain-of-custody, multi-location case tracking, guided officer handoffs, and a complete audit log. Dashboards surface what each role needs first, and complex data is revealed progressively so officers stay focused on the investigation, not the tool.
User Story
As an enforcement officer,
I want every case detail, piece of evidence, and task in one secure place,
so that I can investigate faster and hand work off cleanly without losing the trail.
Target Users
- Income-tax and law-enforcement officers
- Senior investigators leading multi-location cases
- Supervisors tracking caseloads and progress
- System admins managing roles and access
Research Insights
Key Requirements
Functional
- Create and manage a single record per case
- Ingest evidence with metadata and chain-of-custody
- Track cases across multiple locations
- Assign tasks and hand cases between officers
- Role-based access control for sensitive data
- Full, searchable audit log of every action
- Dashboards and reports by role
Non-functional
- Security and data integrity first
- Fast even with large case histories
- Accessible and keyboard-friendly
- Consistent design system across modules
- Resilient error and empty states
User Flow
- 1Officer signs in (role-based access)→
- 2Lands on a role dashboard→
- 3Opens or creates a case→
- 4Ingests and tags evidence→
- 5Tracks status across locations→
- 6Assigns tasks to teammates→
- 7Hands the case off with full context→
- 8Every action is written to the audit log
Screen Breakdown
Role Dashboard
Show each officer their priorities the moment they sign in.
- Active caseload with status
- Tasks and upcoming deadlines
- Recent activity feed
- Quick access to create / search cases
Case Detail
One source of truth for everything about a case.
- Case summary, status, and assignees
- Evidence list with chain-of-custody
- Timeline of events
- Tasks, notes, and linked locations
Evidence Ingestion
Capture evidence consistently and defensibly.
- Upload with required metadata
- Automatic chain-of-custody entry
- Tagging and categorisation
- Validation for missing fields
Officer Handoff
Transfer a case without losing any context.
- Select receiving officer
- Auto-attached case history and evidence
- Handoff notes and acknowledgement
- Confirmation written to the audit log
Audit Log
Make every action transparent and reviewable.
- Chronological, filterable action list
- Actor, timestamp, and change detail
- Search by case, user, or date
- Export for compliance review
Wireframe Structure
┌───────────┬───────────────────────┐ │ Sidebar │ My Cases [+ New] │ │ • Cases ├───────────────────────┤ │ • Tasks │ ▣ Case 1 Open │ │ • Audit │ ▣ Case 2 In review │ │ • Admin │ ▣ Case 3 Handoff │ │ ├───────────────────────┤ │ │ Tasks · Activity feed │ └───────────┴───────────────────────┘
┌─────────────────────────────────┐ │ Case #2451 Status: Open │ ├──────────────┬──────────────────┤ │ Evidence │ Timeline │ │ • Doc · CoC │ • Created │ │ • Img · CoC │ • Evidence added │ │ • File · CoC │ • Reassigned │ ├──────────────┴──────────────────┤ │ [ Add Evidence ] [ Hand Off ] │ └─────────────────────────────────┘
Key UX Decisions
Role-based dashboards
Officers, supervisors, and admins need different first screens; tailoring each reduces noise and speeds action.
Chain-of-custody by default
Every evidence action is logged automatically, so integrity is never an afterthought.
Guided handoffs
Carrying full history into a handoff prevents lost context and rework.
Progressive disclosure
Dense case data is layered so officers see essentials first and drill in on demand.
Audit transparency
A searchable, exportable log makes the system defensible during review.
Acceptance Criteria
- ✓Single record per case
- ✓Evidence ingested with chain-of-custody
- ✓Cases tracked across locations
- ✓Role-based access enforced
- ✓Handoffs carry full context
- ✓Every action is audit-logged
- ✓Audit log is searchable and exportable
- ✓Clear empty and error states
Expected Impact
Business
- — Faster case resolution
- — Lower compliance risk
- — Stronger data integrity
- — Less rework from clean handoffs
- — Easier officer onboarding
User Experience
- — One place for everything
- — Less time hunting for evidence
- — Confidence in the audit trail
- — Smoother cross-team work
- — Clarity in complex investigations
Success Metrics
- Average time to resolve a case
- Evidence with complete chain-of-custody
- Handoffs completed without follow-up
- Audit completeness
- Officer onboarding time
- Task completion rate
- Search-to-result time
- User satisfaction (officers)
Final Outcome
The platform replaces scattered files and email handoffs with one secure, auditable workspace. Officers investigate faster, evidence keeps its integrity, and supervisors gain real visibility — turning a fragmented process into a defensible, end-to-end workflow.