Building a defensible evidence chain

Verification decisions are sometimes questioned months later by a customer, a regulator or a court. What matters then is whether the original reasoning can be reconstructed from the record.
What to preserve
For each piece of evidence: the source, the date it was retrieved, what it showed, and how it was weighed. For field work: the photos with their location and time stamps, and the reviewer who approved them.
The consent record and the declared purpose belong in the chain too.
Reproducibility
A good test is whether a second analyst, given the same evidence, would reach the same verdict. If not, the reasoning needs to be written down more clearly.
Integrity
Audit logs that record who viewed, edited or exported a case, and that cannot be altered after the fact, show that the chain was not changed once the decision was made.
Consent-first, reproducible verification for your team.

