Tokenisation has helped a great deal in protecting a person’s identity and this feature could benefit from its addition. This will also be limited to the use of the document, for instance, if you’re caught speeding on the road, then cops will only be able to see the details required for their records.
In fact, if the technology gets a major leg-up, expect cops to carry compatible device that will be able to read the ID without a person needing to take it out of his/her pocket.
In India, we already have an app that does the digitizing of important document, called DigiLocker. It is a smartphone app-based system that stores and display the user’s information in one place. The official, from the other end, uses the app-based setup to verify the documents against the national registry.