In this Dec. 13, 1971 file photo, New York City Detective Frank Serpico, right, sits beside his attorney, Ramsey Clark, in New York, during the Knapp Commission hearings on police corruption. Things

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In this Dec. 13, 1971 file photo, New York City Detective Frank Serpico, right, sits beside his attorney, Ramsey Clark, in New York, during the Knapp Commission hearings on police corruption. Things haven’t changed much since Serpico broke the NYPD's code of silence more than 40 years ago. Police officers are still encouraged to turn a blind eye to wrongdoing within their ranks and never question authority, or else face harassment by peers and punishment by superiors. (AP Photo/Jim Wells, File) less 

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Associated Press
Mon, Apr 29, 2013 2:19 PM EDT