Portable ballistic shields come to mind. Ankle to head coverage.
When I see Ron "anti-cop" Dellums as Mayor, and Jerry "no death penalty" Brown as AG, it brings the situation in that area of the world all the more into focus.
I heard one news report that said, at the initial scene -- at the place of the first murdered officer -- a twenty+ in number crowd began taunting public safety personnel, because of some unrelated incident.
Outrageous, senseless, and angering...
Body bunkers have their purpose......
The next problem is closed doors on opposite sides of the room - stand out of the line of fire from one, and you’re in the line of fire from the other.