[Ex Post Facto Clause, US Constitution](https://www.congress.gov/crs-product/IF11293 https://www.congress.gov/crs-product/IF11293). Oops, I thought it was so ob

[Ex Post Facto Clause, US Constitution](https://www.congress.gov/crs-product/IF11293 https://www.congress.gov/crs-product/IF11293). Oops, I thought it was so obviously going to be done away with in the courts, but in 1912 the Supreme Court ruled that it applies only to criminal punishments. They always getcha with the fine print.