Article 436 of the French Customs Code
When it is not possible to determine the amount of duties and taxes actually due or the actual value of the disputed goods, in particular in cases of infringement of articles 411-2 a, 417-2 c, 421-3°, 423-2° and 426-1°, penalties are assessed on the basis of the highest tariff applicable to the most heavily taxed category of goods of the same type and according to the average value indicated by…