New NYPD Commissioner Jessica Tisch says the revolving door of the criminal justice system is a big challenge and she was hired to stabilize the department. You can watch Marcia Kramer's interview on "The Point" at 11:30 a.

New Police Commissioner Jessica Tisch has made her first personnel move, naming a longtime aide as her chief of staff. Ryan Merola had been at the Department of Sanitation as a deputy commissioner and chief of staff for Tisch, who served as sanitation commissioner for more than two years.

Commissioner Tisch is the fourth person to hold the role during the Adams administration, and the department’s second-ever female leader.