Police Commissioner Ray Kelly says that a program started last year to cut down on youth violence is already showing signs of success.
Kelly says that Operation Crew Cut led to a 50 percent drop in homicide among victims aged 13 to 21.
The program targets areas vulnerable to potential gang and turf war-related crimes.
The commissioner says that the program is working as designed.
"Under Crew Cut, we established strategic enforcement teams to work in precincts where youth-on-youth crime and related violence was festering," Kelly said.
Police say that 25 investigations were conducted citywide under the program, resulting in more than 400 indictments, including one on Monday in connection with the 2012 shooting death of Brooklyn teen Ronald Wallace.