Actually laws can be absolute, if they're detailed enough. Obviously almost impossible in practice, but maybe ... But the problem with allowing "discretion"

Actually laws can be absolute, if they're detailed enough. Obviously almost impossible in practice, but maybe ... But the problem with allowing "discretion" in laws, is whose discretion. And there seems to be a recent govt enthusiasm for the meta issue of which laws to enforce, and how vigorously, which is certainly a concern.