Already being done. look, cops crack down on crime, and dangerous criminals, who burn people alive, yes. They caught, the guy who did it (The staines murder, and a court subsequently ordered his execution.
But cops also crack down on whatever instigates violent passions, and as a consequence cuts down on their coffee and donut time (In India, actually, Tea and Samosa (stuffed pastry) time).
Just a law of bureaucracy.