"...Once civil order disintigrates and anarchy reigns, it's damn tough to regain control. The animals need to see concrete examples of an iron fist in action..."
Nothing cools a mob like hot lead.
"Nothing cools a mob like hot lead."
The Rhodesian police (before it got turned into the hell-hole known as Zimbabwe) used the bayonet charge pretty effectively too. There's nothing like cold steel to discourage stupidity.