The integrity of a fraud investigation depends on the security and admissibility of the evidence collected. Fraud units implement strict chain-of-custody protocols to ensure all physical and digital evidence remains documented and untampered throughout its lifecycle.

Evidentiary Lineage = Ingestion Log Timestamp + Custodian Secure Vault Transfer + Audit Verification Sign-off

Every evidence asset must follow a documented management lifecycle:

Asset Log Entry = Hardware Serial ID + SHA-256 Bit Hash Value + Custodian Hand-off Signature

To maintain an unassailable evidentiary record, the investigation team documents every asset transfer within a centralized log, recording the unique identification details, cryptographic hash signatures, storage location descriptions, and the signatures of all individuals who accessed the asset. This detailed documentation ensures there are no unverified gaps in the custody timeline, protecting the evidence from challenges during potential litigation.