But there was another cost in how citizens, particularly people who live in the most distressed neighborhoods, regarded the police — and vice versa. There's no way to precisely measure the effects of a strategy from a decade ago, but certainly it was something O'Malley's successor, Sheila Dixon, and her successor, Stephanie Rawlings-Blake, felt needed to be fixed. They rejected zero-tolerance. They brought in police commissioners who took a very different approach. They stressed quality over quantity in arrests. They spoke of restoring trust and gaining the cooperation of citizens in fighting crime.