NEW YORK - Mayor-elect Bill de Blasio has announced that former NYPD Commissioner William Bratton is being appointed to the post again.

Bratton ran the NYPD, the nation's largest police department, from 1994 to 1996 when he worked for former Mayor Rudolph Giuliani. Their tactics are largely credited with beginning a sharp decrease in the city's crime rate.

De Blasio touted Bratton's years of law enforcement experience, leading both the Boston and Los Angeles police departments, and working for several private security firms.

Bratton and de Blasio both vowed to work hard to build trust between the police and community, and make the city as safe as possible. Bratton added that he was thrilled to be back in New York City, and promised to end racial profiling and stop-and-frisk abuses.

Bratton will take over as the top cop on Jan. 1, replacing Ray Kelly, who is the NYPD's longest-serving police commissioner.