“In matters of divorce, evidence can be provided by any means [...]. The judge can only exclude a piece of evidence from the proceedings if it was obtained through violence or fraud” (Court of Cassation, 1st Civil Chamber, June 17, 2009, no. 07-21.796).
The evidence used by spouses must meet the obligation of fairness. Thus, a spouse cannot submit to the court “a piece of evidence that was obtained through violence or fraud” (Article 259-1 of the French Civil Code).