There are two minds on this.
1) Leave them alone, give them what they want, hope they Play Nice. But, as Chamberlain found out, they want more, demand more, and stop caring how they get to that end.
2) Let them know we won't tolerate you sticking guns in our faces, beating clerks, terrorizing good people and profit from them.
In a nut shell, criminals are at a minimum sociopaths (sorry, PC is 'have a social disorder'), possibly psychopaths. They are a cancer. They stop doing what they are doing only when it adversely affects them. Many get off on the fear they cause. What happens to others doesn't matter, and sooner or later the guy will hurt someone. Talking to them doesn't help, letting the violent ones out of jail is a mistake.
Interviewing criminals n a NJ prison, a journalist was told over and over again (paraphrase, I'll see if I can get the exact quote)." I take what I want. If you're man enough to stop me, you might." Bottom line was they all felt entitled to your possessions.
Stop any violent felony you are capable of stopping competently. Let the misdemeanors alone for later investigation.
Time to act like civilized men again, not the doormats we are constantly told we must be in the face of evil.