你说的那个12岁小孩被枪击的案子我看过，那个我认为警察也是有违反protocol的

http://abcnews.go.com/US/cleveland-cops-recklessly-shot-boy-12-toy-gun/story?id=27402837

Surveillance footage from the Nov. 22 shooting shows that the boy was shot within two seconds of the police patrol car arriving at the scene, near a recreational center.

"Defendants Loehmann and Garmback confronted him in a surprise fashion and fired multiple shots at him without any adequate investigation," the lawsuit states. "Four minutes passed without any medical care being provided to Tamir, who lay on the ground alive."