FILE - In this Aug. 6, 2009 file photo, William Bratton, then head of the Los Angeles police department, speaks at a new conference in Los Angeles. Bratton, who is also the former head of the New York City and Boston police departments, has accepted New York mayor-elect Bill de Blasio's appointment to become commissioner of the New York Police Department once again, according to two campaign officials for deBlasio ahead of the official announcement on Thursday, Dec. 5, 2013. (AP Photo/Philip Scott Andrews, File)