Okay kiddo, so you know how sometimes people get really angry and they go out into the streets to protest something they don't like? Well, in some countries, like Chile, people were getting very angry and doing something called making barricades. That means they would pile things up in the streets like rocks and trash bins to block the roads and stop cars from passing.
But the government didn't like that because it could be dangerous for everyone. So they made a law called the "Ley Anti Barricadas." That law says that people are not allowed to make barricades or block the roads during a protest. Anyone who does that can get in trouble with the law and could go to jail.
Now, some people don't like this law because they think it's taking away their right to protest. But the government thinks it's important to keep everyone safe during protests.
So that's what the Ley Anti Barricadas is all about - trying to keep people safe during protests by making sure they don't block the roads with barricades.