Ah yeah, they can't actually do that. Even stupid people have still have rights, actually they are typically in politics.Sounds similar to Canada making it legal for them (The state) to kill people they deem "mentally ill". Sounds like an interesting way to make political opponents disappear...
If you read it, it's a last resort and it's use has to be authorized by specific people. The article is written to make it sound like the police are completely out of control and it's going to be pan-delirium in the streets. The press is out of control, not the police.