AI that identifies people in crowds is already pervasive in China—and now it’s augmenting police officers’ eyes, too. 
The hardware, made by LLVision, sends data from its camera to a handheld device, where AI software crunches through an offline database of 10,000 pictures of suspects in about 100 milliseconds to help officers spot criminals.
Source: Chinese cops are wearing glasses that can recognize faces – MIT Technology Review