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Long before any genius producer began singing the blues on an imaginary hill in an unnamed city where a mix of a dozen or so cops came and went in what was known to script writers as “the usual squadroom boil,” Cop Hater set the tone and the pattern for a police series in which—so far as I was concerned—there were no restrictions on content or style.
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Ed McBain (The Pusher (87th Precinct, #3))