A reliable copy has the same probative value as the original. Reliability is left to the discretion of the judge. Nevertheless, an enforceable or authentic copy of an authentic writing is deemed reliable.
A copy resulting from an identical reproduction of the form and content of the deed, and whose integrity is guaranteed over time by a process that complies with conditions set by decree in the Conseil d’Etat, is presumed reliable until proven otherwise.
If the original remains, its presentation may still be required.