Aside from real ammo, The best remedy is cracked skulls and cattle prods
Nope. Just train the cops to step on the instep of tennis shoe wearing thugs, break their arch and the bad boys will become cry babies.
Put the wrist restraints on and send them to the jail via the hospital ward.
The cops should learn to street fight without being too obvious.
There is nothing like a broken foot to make the vicious thug a simpering wimp.