I don't see this going well in most US domestic scenarios, but the ongoing events in Hong Kong (where we see videos of police persuing fleeing prorestors) comes to mind as a use case.
Because in the US they'd just shoot them?
Actually, have there been cases of police opening fire on protestors? I know it happens in "regular" cases from time to time leading to much reported news stories (which I hope indicates it's uncommon enough to be newsworthy), but has it happened during protests?