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Conclusive Proof: Definition, Example and Related Terms

What is Conclusive Proof ?

Conclusive proof is a term often used in commercial contracts to describe a type of evidence that is so strong, it leaves no room for doubt. It is a proof that is so convincing and compelling that it puts an end to debate or question. The evidence presented is so overwhelming that it leads to a definite conclusion. In the context of commercial contracts, it''s the kind of proof that makes it clear that one party has fulfilled their obligations or that the other party has breached the contract.

For example, if a company is contracted to deliver a certain product by a specified date, a signed delivery receipt could serve as conclusive proof that the product was delivered on time. Similarly, if a company is contracted to perform a certain service, a completed work order signed off by the client could serve as conclusive proof that the service was performed as agreed.

Conclusive proof is crucial in commercial contracts because it protects both parties. It ensures that there is clear evidence of what has been done, reducing the chance of disputes. It provides a solid foundation for enforcing the contract, and it can be critical in legal proceedings if a dispute does arise.

It's important for contract managers to understand what constitutes conclusive proof in their specific context. This can depend on the nature of the contract, the type of work being done, and the specific terms agreed upon by the parties. Contract managers should also be aware of how to properly document and preserve such proof, as it can be crucial in protecting their organization''s interests.


  • Scenario Description
    A software development company is contracted to build a custom software application for a client. The contract stipulates that the software must meet certain performance standards. In this case, conclusive proof could come in the form of test results showing that the software meets the agreed-upon performance standards. The test results, if properly documented and verified, could serve as conclusive proof that the software development company has fulfilled its contractual obligations.
    A manufacturing company contracts a logistics firm to transport its goods. The contract specifies that the goods must be delivered within a certain timeframe. Here, a signed delivery receipt with a timestamp could serve as conclusive proof. If the receipt shows that the goods were delivered within the specified timeframe, this would be conclusive proof that the logistics firm has fulfilled its obligations under the contract.