CNN's Jason Carroll reports on New York City getting its first female police commissioner in the new year, after Mayor-elect Eric Adams picked Nassau County Chief of Detectives Keechant Sewell to take over the nation's largest police department. | CNN

ALWAYS TRAINING, ALWAYS READY TO PROTECT NYC The video demonstrates how the NYPD continually trains in a variety of conditions and scenarios to ensure we are prepared and ready during a variety of crisis situations. Here you can see our Aviation Unit working with members of the Emergency Services Unit at our training facility in Brooklyn. | NYPD