Drew Harwell:

The doorbell-camera company Ring has quietly forged video-sharing partnerships with more than 400 police forces across the United States, granting them access to homeowners’ camera footage and a powerful role in what the company calls America’s “new neighborhood watch.”

The partnerships let police automatically request the video recorded by homeowners’ cameras within a specific time and area, helping officers see footage from the company’s millions of Internet-connected cameras installed nationwide, the company said. Officers don’t receive ongoing or live-video access, and homeowners can decline the requests, which Ring sends via email thanking them for “making your neighborhood a safer place.”