This is Europe's form of police brutality and it needs to stop. The article mentions incitement to violence but fails to support that. It later refers to "inciting hatred against minorities," which is nebulous at best. Specifically, it refers to "[promoting] racism and xenophobia", "insulting a female politician", holocaust denial, and other such conduct.
For all of her flaws, this is one thing America gets right: people should never face criminal charges for this sort of thing.