In the huge web of global supply chains, certainty is one of the most valuable currency. When thousands of solar panels, chips, phones, equipment are shipped from Asia to Europe or when highly calibrated automotive spare parts cross multiple borders, the presumption of their condition at any given moment dictates the allocation of millions of dollars in liability.
Behind the modern framework of cross-border trade lies a timeless legal philosophy regarding the “status quo” and the burden of proof. This philosophy, deeply rooted in the 19th-century Ottoman civil code, the Mecelle, perfectly mirrors the fundamental principles of modern English, Swiss, and Chinese commercial law, and is continuously validated by international arbitral tribunals today.
The Philosophical Core: Soundness as the Ultimate Presumption
To understand the architecture of modern commercial risk, one must look at two foundational maxims from the Mecelle:
Article 9: “Non-existence is the fundamental presumption for accidental attributes.” (Sıfat-ı ârızada asıl olan ademdir.) Article 10: “What is established at a certain time is presumed to continue unless there is evidence to the contrary.” (Bir zamanda sabit olan şeyin, hilafına delil olmadıkça bekasıyla hükmolunur.)
In legal philosophy, “soundness” or “functionality” is the essential attribute of a commercial good. A solar panel is inherently meant to generate electricity; a machine is meant to operate. Therefore, a defect—whether a micro-crack in a photovoltaic cell or a metallurgical flaw in an engine spare part—is an accidental attribute.
Because the law presumes the absence of accidental attributes, the burden of proof inevitably falls on the party claiming the defect. If a buyer accepts delivery of goods without immediate objection, the “status quo” of soundness is legally established.
Modern Equivalents in Global Jurisdictions
This preservation of the status quo is not merely a historical artifact; it is the beating heart of contemporary international law. When a manufacturing hub in Türkiye exports industrial equipment globally, the contracts are governed by diverse legal regimes that reflect this exact philosophy:
- English Law (Sale of Goods Act 1979): Under English common law, the burden remains strictly on the buyer to prove that a hidden defect existed at the time of delivery. The landmark House of Lords decision in Lambert v Lewis [1982] perfectly illustrates this. The court ruled that while an implied warranty of fitness continues for a reasonable time, the buyer must conclusively prove that the failure (in this case, a defective towing coupling) was due to an inherent flaw present at delivery, rather than subsequent wear, tear, or improper maintenance.
- Swiss Law (Code of Obligations – OR): Swiss law imposes a strict duty on the buyer to inspect the goods and notify the seller immediately (Art. 201 OR). If the defect is hidden and manifests later, the presumption of continuity works against the buyer unless they can definitively trace the defect back to the manufacturer’s domain.
- Chinese Law (PRC Civil Code): China’s Civil Code (Article 621) explicitly limits the time frames for claiming hidden defects. If a buyer of electronic components fails to notify the seller of a defect within the agreed inspection period, the law establishes an irrebuttable presumption that the goods were sound and conforming.
The Battlefield of International Arbitration (CISG Precedents)
In international arbitration governed by the United Nations Convention on Contracts for the International Sale of Goods (CISG), the Mecelle’s 10th Article comes to life through CISG Article 36(1). This article states that the seller is liable for any lack of conformity existing at the time when the risk passes to the buyer, even if the defect becomes apparent later.
International tribunals demand rigorous proof from the buyer to break the presumption of soundness. This is heavily supported by established case law:
- The Vigevano Precedent (Tribunale di Vigevano, Italy, 12 July 2000): In this landmark CISG ruling regarding defective vulcanized rubber used in manufacturing, the court explicitly analyzed the burden of proof. The tribunal ruled that under the CISG framework, it is a general principle of international law that the party relying on a non-conformity (the buyer) bears the absolute burden of proving that the defect existed exactly at the moment the risk transferred.
- CISG Advisory Council Opinion No. 11: To unify global arbitration standards, the CISG Advisory Council confirmed that the burden of proving a hidden defect lies squarely with the buyer. If a buyer installs imported solar panels and they suffer a 30% drop in output two years later, the buyer cannot rely on circumstantial evidence. They must utilize forensic engineering to prove the degradation was an inherent manufacturing flaw, ruling out accidental attributes arising after delivery (e.g., micro-cracks from turbulent ocean transit, improper grid connection, or weather anomalies).
- ICC Arbitration Practices on Heavy Machinery: In numerous unrecorded but procedurally identical ICC arbitrations concerning industrial machinery, tribunals consistently reject buyer claims if they fail to bridge the temporal gap. If a machine works flawlessly during the initial commissioning but fails months later, the presumption of continuity (Mecelle Art. 10) dictates that the machine was sound at delivery. The buyer must overcome this by proving a hidden metallurgical or software defect existed prior to shipment.
Strategic Takeaways for Cross-Border Commerce
Executives, general counsel, and global investors operating in or through Türkiye, understanding this philosophical baseline is critical. The allocation of the burden of proof is not just a procedural rule; it is a vital commercial strategy.
When architecting cross-border agreements, companies must:
- Define the Defect: Clearly articulate in the contract what constitutes a “manufacturing defect” versus “normal degradation” or “wear and tear.”
- Establish Immediate Baselines: Implement rigorous, documented inspection protocols (such as independent SGS testing) at the exact moment risk transfers to lock in the “status quo” of soundness.
- Draft Precise Warranties: Create explicit warranty clauses that address the timeline, burden of proof, and necessary forensic methodology for claiming hidden defects.
The party that controls the narrative of the status quo controls the outcome of the dispute. From the ancient caravans of the Silk Road to the modern mega-ships transporting renewable energy infrastructure, the fundamental rule remains unchanged: The law protects the established continuity, and those who claim the contrary must bear the weight of absolute proof.