Comment Re:Why does anyone want this (Score 3, Insightful) 22
Do you really want to hand over your phone to a pig during a stop or a TSA goon at the airport? Get stopped for a traffic stop, you only have your ID in your phone so you have to hand over your phone to the pig so they can go write the ticket and in the 10-15min they are back in their car with your phone they are going though your messages and pictures.
The mobile driving license standard does not require you to hand your phone over, and indeed it wouldn't help the cop if you did because he'd have to hand it right back so you could unlock before it would send any data. It delivers the data to the copy wirelessly, via NFC, BLE or Wifi, depending on the context. What's on the screen (either a QR code or nothing) does not identify you or prove your driving privileges, so it's useless to the cop, intentionally so.
I was involved in the development and standardization of the mobile driving license standard and in the process spent some time talking to cops from a few jurisdictions. Interestingly to me, the response from the cops was universal: They would strongly object to anything that would require them to touch your phone. Of course, I was talking to the higher-ups and their concern was the liability that would be incurred if a lot of their officers broke peoples' thousand-dollar phones. Individual cops might have different perspectives, but their commanders thought it was way too risky.
As for passports, IMO any useful mobile passport should work the same: No handing over of the device, indeed the protocol should ensure that the device must be in the user's hand to present the passport.