Evidence Management and Digital Forensics

Overview#

A serious organised crime unit investigating a financial fraud network seizes devices, cloud account data, and physical documents across multiple jurisdictions over the course of months. Each item must be catalogued, preserved with forensic integrity, shared selectively with prosecutors and co-investigating agencies, and eventually presented in court with a complete account of its handling from the moment of seizure. Managing that process manually across dozens of investigators, legal teams, and technical examiners is how evidence gets lost, mishandled, or excluded at trial.

The Evidence Management domain gives law enforcement, corporate security teams, legal professionals, and regulatory agencies a single platform for the complete evidence lifecycle: collection, preservation, analysis, disclosure, and disposition. Every action taken against evidence is recorded with cryptographic verification, chain of custody is maintained automatically, and court-ready documentation is available at any point in the lifecycle. The platform applies equally to criminal investigation units, digital forensics labs, financial regulators, prosecutors, coroner services, and military intelligence units.

Key Features#

• Complete evidence lifecycle management from collection through disposition, with no gaps in the custody record
• Chain of custody tracking with immutable audit trails and cryptographic verification at every stage
• Digital forensics tools for evidence analysis and examination, including hash verification, derivative generation, and AI-powered content extraction
• Court-admissible documentation and reporting with Digital Notary tamper-evident timestamps
• Multi-format evidence support across digital files, multimedia, physical item records, and forensic images
• AI-powered classification and metadata extraction to reduce manual cataloguing effort on large collections
• AES-256-GCM encrypted storage with role-based access controls and full access logging
• Evidence sharing with authorised parties through controlled channels with per-recipient audit trails

Use Cases#

• Collecting and preserving digital evidence with forensic integrity for criminal investigations, from initial seizure through court presentation
• Managing evidence lifecycle across complex multi-jurisdiction investigations, from seizure through final disposition
• Analysing digital evidence using AI-powered classification and content extraction tools to accelerate case preparation
• Sharing evidence securely between agencies and legal teams with granular access controls and complete audit trails

Integration#

The Evidence Management domain connects with investigation systems, chain of custody tracking, disclosure workflows, and court filing platforms.

Open Standards#

• W3C Verifiable Credentials Data Model v2.0: Verifiable Credentials are issued at evidence collection and custody-transfer events, signed with Ed25519 keys, serialised as compact JWTs, and identified by did:web DIDs to provide cryptographically verifiable provenance for every evidence item.
• RFC 3161 (Internet X.509 PKI Time-Stamp Protocol): A configurable RFC 3161 Time-Stamping Authority client embeds trusted timestamps into evidence export packages, supporting RFC3161_EMBEDDED mode and combined ED25519_JSON_WITH_RFC3161 signature mode for court-admissible tamper-evident records.
• ISO 19005 (PDF/A), Parts 1, 4: Court-ready exports are produced in ISO 19005-1:2005 (PDF/A-1B), ISO 19005-2:2011 (PDF/A-2B), ISO 19005-3:2012 (PDF/A-3B, the default), or ISO 19005-4:2020 (PDF/A-4F) to meet long-term archival requirements imposed by different court jurisdictions.
• FIPS 197 / AES-256-GCM: All evidence files are encrypted at rest using AES-256-GCM, with the algorithm name stored on the evidence record and enforced by the upload and handling services.
• NIST FIPS 180-4 (SHA-256 / SHA-512): SHA-256 digests are computed over evidence file bytes at ingestion and stored with each record; SHA-512 is retained as a secondary hash for forensic integrity verification and constant-time comparison.
• IETF RFC 2822 / MIME (RFC 2046): Email evidence files are ingested and parsed as RFC 2822 .eml messages using standard MIME structure, with message/rfc822 content type explicitly recognised alongside Outlook .msg format.
• Exchangeable Image File Format (Exif / ISO 12234-2): EXIF metadata is extracted from image evidence, including capture timestamps, camera model, and GPS coordinates, which are converted to decimal-degree form for geolocation tagging.
• GraphQL (June 2018 Specification): The full evidence lifecycle API, uploads, chain-of-custody mutations, disclosure workflows, and Verifiable Credential operations, is exposed through a typed GraphQL interface implemented with Strawberry.

Last Reviewed: 2026-02-05 Last Updated: 2026-04-14