BROOKLYN - A Brooklyn student is now running the NYPD, if only for a day.

Alanna McAuliffe, a junior at Bishop Kearney High School, won this year's "Police Commissioner for a Day" essay contest. Students from around the city were encouraged to respond to a question about gun violence, with the winner filling in for Commissioner Ray Kelly.

McAuliffe says teen gun violence has affected her on a personal level, adding that illegal firearms need to be taken off the streets.

Runner-up students were appointed as chiefs, commanders and captains. They toured harbor patrols, aviation stations and EMS units.