A satellite audit of claims and environmental damage uses orbital imagery with a documented chain of custody to reconstruct the state of an area before, during, and after an event — with standing as technical evidence in administrative and legal proceedings.

What changes with satellite is the objectivity and traceability of the evidence. The image records what existed on a specific date, with a hash and timestamp that prevent later tampering.

For insurers, companies with environmental liabilities, adjusters, and regulators, this represents a structural shift in how what happened gets proven.

Why satellite evidence carries different weight than a field-visit report

A report based on a field visit documents the current state. It doesn’t document the state before the event.

When the visit happens weeks after the incident, as often occurs in environmental insurance claims, what the adjuster finds is the result of days of rain, erosion, human activity, and vegetation regrowth.

The satellite image archived on the date of the event freezes the state of the area at that moment. Comparing the pre-event and post-event images reconstructs what changed, where it changed, and to what extent.

According to legal analysis published by Portal SEGS, satellite data from the Copernicus program qualifies as technical documentary evidence and as indirect expert evidence, with growing admissibility in Brazilian law, provided due-process principles are preserved.

Evidence that didn’t exist before the event happened can’t be produced afterward. The archived satellite image is the only one that existed on the exact date.

Which types of claims and environmental damage benefit from satellite auditing

Satellite auditing applies to any event that leaves a mark on the surface visible to the sensor, optical or SAR.

• Dam rupture or collapse — extent of the tailings plume, affected areas, comparison against the declared contingency plan.

• Fire in an industrial or forested area — estimated start date, burned area, spread direction, assets affected.

• Oil or tailings spill — plume delineation, temporal progression, affected protected areas and water bodies.

• Deforestation and unauthorized clearing — start date, cleared area, comparison against the current environmental permit.

• Illegal occupation within a granted perimeter — date of emergence, extent, comparison against the mining title.

What makes up a satellite audit package with evidentiary value

For a satellite image to have evidentiary value in an administrative or legal proceeding, it needs a documented chain of custody.

The image alone isn’t enough. More precisely, it must be proven authentic, that it represents the stated date, and that it hasn’t been altered.

The elements that make up a valid audit package are:

• Cryptographic hash of the original image — guarantees the file wasn’t modified after generation.

• Certified timestamp — ties the data to the date and time of satellite acquisition, with traceability to the constellation operator.

• Versioned methodology — documents how the processing was done, which algorithms were applied, and which parameters were used.

• Time-series comparison against historical data — demonstrates the pre-event state with the same chain of custody.

• Signed technical report — contextualizes the data for the court-appointed expert or the regulatory agency.

How NOR structures satellite audit packages for regulatory and legal proceedings

At NOR Space Intelligence, every piece of evidence generated during continuous monitoring is already born with an integrated audit chain.

Every alert includes a cryptographic hash, timestamp, and versioned methodology, ensuring traceability and integrity from the source, with no need for later validation for use in technical, regulatory, or legal proceedings.

When the incident has already occurred, NOR performs a retrospective analysis of the historical series of the affected area.

The technology reconstructs surface conditions on dates prior to the event, making it possible to identify when the change began, how it evolved, and its extent.

The result is a complete technical report, with time-series comparison, precise delineation of the impacted area, and structured documentation to support decision-making.

Among the key advantages of this process are:

• Digital chain of custody embedded in every piece of evidence produced.

• Historical reconstruction of the event’s evolution using imagery from different dates.

• Objective delineation of the affected area based on geospatial data.

• Documented technical report, ready for use in audits, expert assessments, and regulatory proceedings.

The material produced is compatible with the requirements of regulatory and enforcement agencies, including IBAMA, ANM, ANEEL, and Civil Defense, in addition to meeting the evidentiary requirements of the Code of Civil Procedure for expert reports in public civil actions and environmental liability proceedings.

For the insurance market, NOR also offers expedited analysis within 72 hours of the request, with the ability to investigate claims that occurred in the last 36 months.

This supports loss-adjustment processes, liability determination, and technical analysis within the coverage period adopted by most environmental liability policies.

Want to see how it works in practice? Request a satellite audit package now for your claim or regulatory proceeding.