Does ex post facto apply to civil and criminal law?

The Heritage Guide to the Constitution Daniel Troy > No...ex post facto Law shall be passed. read more

In addition, prior to the Constitutional Convention, some states themselves had passed ex post facto laws. (The prohibition of ex post facto state laws is found in Article I, Section 10, Clause 1.) Nevertheless, opposition to ex post facto laws was a bedrock principle among the Framers. read more

An ex post facto law (corrupted from Latin: ex postfacto, lit. 'out of the aftermath') is a law that retroactively changes the legal consequences (or status) of actions that were committed, or relationships that existed, before the enactment of the law. read more