For the application of 3° of Article L. 112-2, a debtor who claims that sums received by him are of a maintenance nature may refer the matter to the enforcement judge for a determination of whether and to what extent these sums are of a maintenance nature.
To this end, and where necessary, the judge shall apply the scale provided for in articles R. 3252-2 et R. 3252-3 du code du travail.