PROOF OF THE LEGAL FAULT
The burden of proof is on the victim who claims to be the holder of a claim for compensation (cf. article 1315 Civil Code) and who is the plaintiff (NCPC art. 9)
For the burden of proof v. for example accident_sportif__and_responsabilite_des_associations
MEANS OF PROOF
Proof of fault can be done by any means (article 1348 Civil C.)