Is Marsys’ Law retroactive? For example, if there was a criminal case already in progress when the law was put into action, does it apply to that case?

Marsy’s Law applies to all cases that are currently in the criminal justice process regardless of whether they began before or after February 5, 2018. Marsy’s Law does not apply to cases that are already closed or hearings that took place prior to February 5, 2018.