Lucius knew that this would be coming. So, he answered solemnly: "Well, Lord Dumbledore, I believe that you haven’t researched the vampires better. Most vampires have been living in clans and these clans have their own laws, but this has been in the past since the vampire council in Bucharest has been founded. With the council and later, after the global wizarding war, the ICW were founded, all countries in Europe have signed this treaty, in order to make peace with the vampires and make the British vampire treaty in Bucharest mandatory in the magical governments. But the danger is coming from rogue vampires. Even the council has troubles with rogues and mostly the vampires from the council are trying to hunt them down, in order to kill them, but they are proving to be difficult to be killed. A rogue vampire is very dangerous, because they have an uncontrollable bloodlust and have shown to be very violent and sadistic to their victims. A normal vampire could limit his bloodlust for two to three weeks. Normally, vampires needed only half a litre of blood and they can survive without it for the next two weeks. Noble vampires could survive without blood for nearly three weeks until they enter bloodlust. But vampires are always avoiding the bloodlust, because it is not really healthy for them and us, because we as humans could die because of blood loss and the vampire could suffer some digesting issues, because he or she is reintroducing the lacking blood in great amounts into his or her body and it put strains on his or her body. It is like, if a human starves and you suffer many deficiencies. Then, you forcefully reintroduce yourself solid food without being diagnosed by a dietican, in order to fix the deficiencies in your body. From there on you are endangering your own body, because you are creating a lot of issues in your organs and are straining the body. That is the same thing that is happening with vampires, who are entering blood lust. They are harming themselves too. We only need to remove the laws from our law books, because the vampire council will bring the treaty in front of the ICW next time to our attention and the vampires would be able to bankrupt our government with the sanctions from the ICW."