NEW YORK - William Bratton was sworn in Thursday as the city's new NYPD commissioner, replacing Ray Kelly.

Bratton is no stranger to the job. He previously led the department from 1994 to 1996 under the administration of Mayor Rudolph Giuliani.

He says there's a lot of work that needs to be done in the city, indicating he'll focus on ending racial profiling and the abuse of stop-and-frisk.

Bratton also previously served as commissioner for the Los Angeles and Boston police departments. 

For extended video of Bratton, watch the clip to the left or click News 12 Extra on Optimum TV channel 612.