ELI5: Explain Like I'm 5

Double jeopardy

Okay kiddo, imagine you're playing a game of tag. You're running around with your friends, trying to tag them, and they're trying to tag you. But let's say the rules suddenly changed and if you get tagged once, you're out of the game forever. That doesn't really seem fair, right?

Well, that's kind of like what double jeopardy is. Only it's not a game, it's something that happens in real life. So let's say someone is accused of doing something bad, like stealing a candy bar from the store. They go to court and a judge and jury decide that they're guilty. But then, later on, maybe new evidence is found that shows they weren't actually guilty.

Now, in some places, the law says that even though they weren't guilty before, they can't be tried again for the same thing. That's double jeopardy. It means you can't be punished twice for the same crime.

Does that make sense? It's like if you were playing the tag game and your friend tried to tag you a second time after you'd already been caught. That wouldn't be fair, right? The same goes for the law. Once you've been found guilty or innocent of something, you can't be tried again for the same exact thing.
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