They also announced some goals for 2013.
Last year, officers in Chester made more than 2100 arrests.
Weapons-related assaults, burglaries, and arsons also dropped to some of the lowest rates in years.
Chester Mayor John Linder said reducing gun violence will remain a major focus moving forward.
Meantime, the Police Department announced it will expand a community relations initiative.
Chester Police Commissioner Joseph Bail, Jr. added that citizen action is key in locking up violent criminals.
