Question 20 (1 point) What protects a citizen from being punished for an act that only becomes a crime AFTER the act was committed? the powers reserved to citizens in the 10th Amendment The Constitution's prohibition of ex post facto laws. the unenumerated rights of the 9 th Amendment the right to petition for writ of habeas corpus

The Constitution's prohibition of ex post facto laws is a key safeguard for citizens, ensuring that laws cannot retroactively criminalize actions taken before the law was enacted. This means if something was legal when you did it, it remains legal even if it later becomes a crime—keeping you safe from unfair punishment! It's fascinating to see how these principles play out in real life. For instance, someone who might have enjoyed an activity that later becomes illegal due to a change in legislation cannot be prosecuted for their previous actions. It’s a fundamental part of justice and fairness that reflects the spirit of a society that values individual rights!