Latin for "from a thing done afterward." Ex post facto is most typically used to refer to a law that applies retroactively, thereby criminalizing conduct that was legal when originally performed. Two clauses in the US Constitution prohibit ex post facto laws: Art 1, 9 and Art. 1 10. [cornell.edu]
Most of these users downloaded songs before they were technically ruled as copyright infringement. So they can't be tried for doing something that wasn't illegal when it was done. How's that for legal defense?
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the radio interference caught all the porn that kids were downloading. Diane Rehm never sounded so sexy!!
You know what every guy is thinking...some sweet shots of your neighborhood babe suntanning!
Ex post facto
Most of these users downloaded songs before they were technically ruled as copyright infringement. So they can't be tried for doing something that wasn't illegal when it was done. How's that for legal defense?