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Choose the depth of review

Three verification levels matched to the decision risk.

The right verification level depends on the consequence of being wrong, the evidence already available and what your decision actually requires.

Level 1

Evidence Check

A limited test of one claim, document or defined source set.

  • Source existence and relevance
  • Obvious contradictions
  • Key evidence gaps
  • Concise reliance finding

Typical starting point: from US$650

Level 2

Evidence Assurance Review

A systematic review against client-supplied material and selected external sources.

  • Claim-by-claim assessment
  • Citation and source-quality review
  • Independent-corroboration testing
  • Material findings and limitations

Typical starting point: from US$1,500

Level 3

Decision-Grade Independent Verification

A deeper adversarial review for consequential reliance.

  • External source verification
  • Counter-evidence and alternative explanations
  • Evidence gaps and material contradictions
  • Defensible decision record

Quoted according to scope: often from $5,000

Meaning of decision-grade

A process standard, not a guarantee.

“Decision-grade” describes the agreed depth, traceability and documented review process. It does not mean that all relevant information is available, that the conclusion is infallible or that the client’s ultimate decision is guaranteed.

Confirm the current scope and fee.

Any price indication on this page is orientation rather than a binding current quote. The accepted written proposal sets scope, source costs, review, currency, capacity and payment terms. Development-model prices do not constitute an approved specialist offer.

How engagement pricing is agreed
Send a Matter

Contact Aperture Research Works

Choose the route that matches your situation. A real person will review your message. Formal instructions, evidence and sensitive documents should be sent by email or an agreed secure transfer route.

First ContactStart a new enquiry. Tell us who you are, what you need to determine or verify, the relevant country or market, and any real deadline. Urgent Follow-Up / CommunicationFor an existing or time-sensitive matter. Include the matter reference, what changed, what response you need and the exact deadline with time zone. Email ApertureOpen a pre-addressed email with a useful subject and enquiry template.

Do not send confidential evidence, identity documents or large files in the first WhatsApp message. We will confirm the appropriate submission route.

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