On Wednesday, LA Police Chief Bill Bratton (left) announced that he's quitting. Joe Domanick, of USC's Annenberg Institute for Justice and Journalism, and author of "To Protect and To Serve," a history of the pre-Bratton LAPD, says Bratton brought "adult supervision" to the force, and maybe his reforms will stick.

LAPD chief Bill Bratton, 2005.
(
Gary Leonard
)