"The use of drones to help find Bernstein and other missing people is just one form of new technology law enforcement is using to do their jobs, said former FBI Agent and ABC News contributor Brad Garrett.
Predictive analytics, closed-circuit television, GPS darts and even experimental facial recognition are among the new tools, he said. With predictive analytics, which Garrett said is used in a number of cities, "through algorithms you start to look at crimes and through analysis you're able to maybe hone down day, time, location, technique."
He said it can "help you figure out potentially who committed the crime and maybe more predicatively when they may strike again."
Closed-circuit television (CCTV) uses algorithms that can look for specific anomalies, while GPS darts can be shot toward, and latch onto, fleeing vehicles, Garrett said. And facial recognition -- which Garrett says is being used internationally but hasn't quite caught on in the United States -- can scan faces in a crowd and "give you some basic bio-metrics" to help search for a particular person.
There are privacy concerns, Garrett said, but "most systems have safe guards built in place."
The risk "should not stop us from developing it," he added. "As the world moves on, that's where were headed. Law enforcement has to keep up with technology.""
http://abcnews.go.com/US/blaze-bern...-find-missing-upenn-student/story?id=52232836