Police corruption, prostitution, and illegal gambling are all revealed in this CBS news report from 1971 on the Knapp Commission, which uncovered rampant corruption in the New York Police Department . The chief counsel for the commission was Michael Armstrong, author of They Wished They Were Honest: The Knapp Commission and New York City Police Corruption .
As background, below is an excerpt from the CBS news report, in which an officer discusses how various plainclothes policeman were on the take. The clip also includes a short interview with Xaviera Hollander (aka Madame X and The Happy Hooker)
And for more background, here is the trailer for Serpico (1973), which starred Al Pacino as Frank Serpico. Serpico’s contribution to a New York Times story on the police as well as his testimony to the Knapp Commission revealed the depth of the corruption in the New York City Police Department.