Bill Clark

Biography

Bill Clark (born May 20, 1944) is a former New York Police Department detective and a television writer and producer. He was a veteran NYPD Detective First Grade before joining David Milch and Steven Bochco's NYPD Blue in the first season as technical consultant, drawing on his twenty-five years experience with New York undercover and homicide units to ensure that the series accurately and realistically portrayed the work of New York City detectives. He went on to win two Emmy Awards, and was also honored with a Writers Guild of America Award, a Peabody Award and two Humanitas Prize.

Bio from Wikipedia