The legal framework governing the proof of contracts that are required by law to be in writing, but which have been lost or destroyed, is centered on Article 2003 of the Civil Code as interpreted by the Federal Supreme Court Cassation Division. Under the binding decision in Cassation File No. 69208, the court established that if a contract required to be in writing is proven to have been torn, stolen, or lost, its contents can be established through witness testimony or judicial presumption. This principle serves as an essential exception to the general rule that oral testimony is inadmissible to prove or vary the terms of a written agreement.
A critical procedural prerequisite for invoking this exception is that the party seeking to use oral evidence must first provide a convincing explanation and proof regarding the loss of the original document. As clarified in Cassation File No. 122849, witness testimony or judicial presumption cannot be admitted until the actual disappearance or destruction of the contract is established. Furthermore, Cassation File No. 84330 underscores that simply presenting an uncertified copy of a document is insufficient; the proponent must explain the absence of the original before the court can consider secondary evidence or witness statements. This safeguard prevents parties from bypassing formal written requirements without a legitimate excuse for the missing documentation.
The application of Article 2003 extends even to high-formality transactions, such as contracts involving immovable property which are strictly required to be in writing under Article 1723(1) of the Civil Code. The Cassation Division has held in File Nos. 250125 and 253783 that if a real estate contract is proven to have been lost or burnt under special circumstances, the existence and terms of that agreement may be established through witness testimony and other corroborative evidence. This ensures that substantive rights are not permanently extinguished solely due to the accidental destruction of a physical deed or certificate.
In cases where the original document is unavailable, the court may also look to a combination of secondary evidence and administrative records to ascertain the truth. According to Cassation File Nos. 53459 and 56682, when an original contract cannot be found, a copy of the agreement may be granted evidentiary value if it is supported by other government documents or official court records that confirm the transaction took place. Ultimately, the judicial objective under this regime is to balance the need for formal written proof with the equitable necessity of recognizing valid agreements when the physical evidence has been lost through no fault of the party asserting the right.