France
In France, the parties are free to choose the evidence in support of their respective claims. Each party must substantiate its claims and satisfy its burden of proof. Evidence is usually given in written form, including by way of affidavit.
Despite the above, the French Code of Civil Procedure allows for pre-action disclosure when (pursuant to Article 145 of the French Code of Civil Procedure):
- there is a legitimate reason to preserve or to establish the evidence before any trial; and
- the resolution of the dispute depends on this evidence.
The collection of evidence in such circumstances will most likely be done via an ex parte court order appointing a bailiff to preserve or establish such evidence. Only the investigating measures provided by the French Code of Civil Procedure may be ordered by the judge, who must ensure that the measure is not intended to supplement a lack of evidence on the part of the plaintiff. A recourse against such ex parte orders can be made before the judge having ordered the investigation measures to allow an adversarial debate.
During the course of the proceedings, if a party wishes to force another party to produce certain evidence, it may request the court to order production of such evidence, provided it can demonstrate that the evidence is relevant to the case. This gives rise to a discussion between the parties that is separate from the merits. If a party refuses to comply with a court order for the production of evidence, the court is entitled to draw any conclusion it deems appropriate based on the circumstances.