Police scanners broadcast events as they happen. You can keep tabs on crimes and incidents in your town with one of our favorite police scanner apps.

Whether you’re following protests or just wondering why there’s a helicopter hovering over your neighborhood, police scanner apps help you stay informed on what the cops are up to.

There was a great Huffington Post post a couple years ago: a Radio Shack ad from 1991, accompanied by the comment that every single product in it has now been replaced by the smartphone. You know ...

If you want to know what's going on in your neighborhood, or you want to keep track of your local police activities, here are some apps that can help.