Boston uses two high-tech tools to combat crime
Tracks gunfire and parolees
Boston police made nine arrests in the past year guided by a new method of comparing data from two high-tech monitoring systems: Shotspotter, which reports the location of gunfire, and one that discloses whether any probationers or parolees wearing court-ordered GPS trackers were in the area. Boston may be the first city nationwide to do this. Analysts cross-check manually, making telephone calls and typing into a computer, but authorities are working on a system that would automatically merge information and alert investigators in the field.