system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Isn't searching for past possible Nazi war criminals, who are well into their 90's, a big waste of money and time?

Tracking these people down takes years and a lot of money, but ultimately leads to nothing. So why is it still going on?
gpt
It's about precedent. Crimes against humanity don't have a statute of limitations, so they should always be tried to the fullest extent of the law. Otherwise, you would have to decide when to cut that off. Imagine if someone was found not guilty because they were tried one day too late.