Lucius also made sure to order the Hogwarts elves with the help of Amelia and Pandora that any potion in the school would be destroyed, because of the issue that Bill and Charlie faced, when they were potioned and spelled by Molly and the headmaster, because most potions were slipped during their school years and they were distrustful towards the food, after they were purged. Therefore, Lucius started to investigate the matter and found out that many students in Gryffindor, Hufflepuff and a small minority in Ravenclaw and Slytherin were potioned and spelled by Dumbledore and his followers on staff. Most potions were in case of the Gryffindors, Hufflepuffs and Ravenclaws distrust and hate potions towards the Slytherin house and in case of the Slytherins, there were potions that would encourage the Slytherins to isolate themselves against the other three houses.