Nov. 15, 1971: Mayor John V. Lindsay of New York, foreground, and Police Commissioner Patrick Murphy, to his left, spoke with members of a special disguise-wearing anti-crime patrol. The outfits might have provoked giggles but the officers’ task was sobering: “Proof of the vast disparity with which crime falls across New York City and evidence of wide differences in the ability of individual precincts to arrest criminals have emerged” from a comprehensive analysis by The New York Times of crime statistics from 1971. Photo: Robert Walker/The New York Times