> In some nations that follow the Westminster system of government, such as the United Kingdom, ex post facto laws are possible, because the doctrine of parliam

> In some nations that follow the Westminster system of government, such as the United Kingdom, ex post facto laws are possible, because the doctrine of parliamentary supremacy allows Parliament to pass any law it wishes. https://www.wikipedia.org/wiki/Ex_post_facto_law https://www.wikipedia.org/wiki/Ex_post_facto_law Just get that fixed as well, that's not a great thing to have around.