NEW YORK, NY - SEPTEMBER 16: New York City Police Commissioner Bill Bratton shakes hands with Mayor Bill de Blasio as he walks through 1 Police Plaza in downtown Manhattan during a ceremonial send-off on September 16, 2016 in New York City. Bratton, who left three years into his second term as the city's police commissioner, ended his law enforcement career to go into private business. (Photo by Spencer Platt/Getty Images)