No Law, made after a Fact done, can make it a Crime: because if the Fact be against the Law of Nature, the Law was before the Fact; and a Positive Law cannot be taken notice of, before it be made; and therefore cannot be Obligatory. But when the Law that forbiddeth a Fact, is made before the Fact be done; yet he that doth the Fact, is lyable to the Penalty ordained after, in case no lesser Penalty were made known before, neither by Writing, nor by Example, for the reason immediatly before alledged.