In America, that's what the states' Police-Departments are
said to be trained-, equipped- & paid-to do. And I suppose they are successful for the most-part; yes there
are highly-broadcast tales of their 'mistakes' (suffocating a man to death coz he was African-American & scary, etc.), but I'm not afraid that ravaging hordes will overtake my neighborhood anytime soon!
political groups and mobs thereof - all crying the same "democratic" mantras,. that are closer to the extremes - i.e democracy is only true if it is MY democracy - otherwise it is undemocratic - erm, sounds like fascism/communism to me!
"Democracy" is a slight misnomer. True democracy would be 'anarchy'---each individual heading his own kingdom & willing to destroy anyone who claims dominion over them in any way. No, America is not a democracy; it is a republic ... barely even 'democratic' in its leaders' elections!
Our government has three branches, and we citizens only control a tiny percentage of ONE of the branches (while one of them is made of members whom another branch chooses, and THAT branch--though there's a 'popular vote' to help leaders decide to elect him--is elected by a secret committee ... or something).
No, the closest thing we have to a "democracy" is in the marketplace, although that IS "ruled" by 'how much money you control.'