Why would they admit to that?
STUPID!!!
Chinese Police Step Up Phone Checks, Using Surveillance Apps
FTA:
Chinese netizens recently reported that police have begun checking people’s smartphones with a special mobile device at subway stations and on the streets of Beijing and Shanghai.
Beijing police said that the tool is only for scanning people’s IDs, but netizens and experts who dug deeper have discovered that the product can extract personal data from smartphones without authorization from the smartphone owner.