зависит от случая к случаю. вот опять же недавний случай - подозреваемый размахивает ножом, угрожая окружившим его полицейским... ему заговаривают зубы, наваливаются сзади и арестовывают живого.... т.е. могут...

“He was hiding behind some low bushes and had a knife in his hand,” she said. “He was making a stabbing motion. He obviously was not in his right mind.”
Pregelj said police were attempting to talk the man down when a plainclothes officer tackled him from behind.
“They all went in and took him down and cuffed him,” she said. “It was so bizarre. I just live down the road. We’re all freaking out about it.”