U.S. Constitution has an ex post facto clause, but the CBA apparently does not. Anything goes.
1/2 Civil law has a general presumption against retroactive application of new laws/rules, but many exceptions.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
1/2 Civil law has a general presumption against retroactive application of new laws/rules, but many exceptions.