Coming soon to America's streets: Robocop?

The Knightscope K5 is a five-foot-tall autonomous robot (one presumes that its resemblance to a Dalek is merely coincidental) that roams around your neighborhood, observing and gathering data and trying to predict where and when criminal activity will occur.

It carries no weaponry, but it has a pretty complete sensor package that includes thermal imaging, license plate reading and facial recognition.