These’s half a dozen examples like this. The Animagus Transformation being classified as requiring licensing for "dangerous experimental human transfiguration’; weather manipulation at all levels being outlawed even when it would save lives from a dangerous storm; how the Killing Curse went from a well-intentioned medical euthanasia spell to an Unforgivable; how permanent warding schemes on old manors were outlawed because it could restrict access by the Ministry for raids; and more.