In the United States, you can be prosecuted in some states for drug possession if your prescription has expired and you still have the drugs [1]. This has not been sufficiently tested with the Supreme Court so you could eventually win on appeal but not before spending lots of money and time behind bars.
> This assistant district attorney operates on the theory that if your prescription was expired on the date of the alleged conduct, you no longer “possessed a valid prescription” at that time and therefore cannot avail yourself of the affirmative defense.
Christ. That is insane. What are people supposed to do for medicines that are used only in the case of an emergency? I really wonder what goes through some of these prosecutor's heads sometimes.
[1] https://edfolsomlaw.com/2013/01/illegal-possession-of-your-o...