EWI

Expert Witness Institute

Independent. Defensible. Trusted.

Evidence Engine

Chain-of- Custody

Immutable, auditable tracking of all evidence from the moment it enters the EWI system until final court delivery.

All Technology

Core Capabilities

Complete evidence integrity

01

Evidence Cataloguing

Systematic cataloguing of all evidence items with unique identifiers, hash verification, and metadata capture.

02

Timestamped Events

Every action -- upload, view, download, modification -- is timestamped and recorded in the immutable ledger.

03

Hash Verification

Cryptographic hash verification ensures evidence integrity from ingestion through to court presentation.

04

Access Logging

Complete record of who accessed what evidence, when, and for what purpose.

Detailed Capabilities

Immutable audit trail

Every piece of evidence processed through EWI is tracked with an immutable, tamper-evident audit trail.

Automated hash generation and verification
Tamper-evident audit trails
Role-based access controls
Version control for all documents
Court-ready chain-of-custody reports
Integration with external storage systems
Compliance with Australian Evidence Act requirements
Export functionality for legal proceedings

Evidence Integrity

Ensure evidence integrity

See how the Chain-of-Custody Ledger can protect your evidence from challenge.