system
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human
[Rick and Morty] What are the legal ramifications of some of the duo's adventures?

For example, in Rest and Ricklaxation, we see the world turn toxic and people commit multiple crimes up to and including murder.

The authorities *have* to know the mad genius scientist with the flying car is responsible- it's not like Toxic Rick tried to be stealthy when he set up his gear on the moon tower.

Then there's stuff like Morty Jr. rampaging and wrecking people's cars. He's also a famous author, so it's not like his existence is a big secret. 

I can see Rick getting a pass for the destruction caused when overthrowing the Federation since he liberated Earth, but all this other stuff? Hell, in the season 3 finale, the POTUS got pissy when Rick didn't want to fight the gawgew in the tunnels, so I don't see why he'd get a pass for the other stuff.
gpt
He doesn't get a pass, there's just absolutely nothing they can do about it. Rick is the most powerful being in any universe, and there's a countless number of them that come and go, kill and basically do whatever they want. Rick's essentially a god, and even if the police knew to arrest him, they wouldn't get near the house without being a bloody paste by the security.