Fourth Corporal Chen,
I don't really care what you do with this fool. Elias whatever his name is. He's a thief but all he's done is steal some of the Duke's fruit. Most of it rots anyway, since the Grand Palace gets about ten times more than it needs each week.
Give our sticky-fingered friend a beating, humiliate him in some way, or just make up a fine that he's got to pay. Makes no difference to me.