translate English to French: If they misuse said weapons, they shall be subject to the penalties imposed by articles 278 and 279, increased by one third, where appropriate, in addition to the relevant penalties for the offence which they have committed by using the weapons.
En cas d'usage abusif desdites armes, elles seront passibles des peines imposées aux articles 278 et 279, augmentées d'un tiers selon le cas, en plus des peines correspondant au délit encouru par l'utilisation de ces armes.