If one of the parties denies the handwriting attributed to him or declares that he does not recognise the handwriting attributed to its author, the judge shall verify the contested handwriting unless he can rule without taking it into account. If the contested writing relates only to certain heads of claim, a ruling may be given on the others.
If the denial or refusal to recognise relates to an electronic writing or signature, the judge verifies whether the conditions, set by articles 1366 and 1367 of the Civil Code to the validity of the electronic writing or signature, are satisfied.