[sdtransier]

One possible use case would be for police officers to scan driver licenses when pulling people over. When I worked for a city IT department, they had to have separate barcode readers installed in the cars for that, so I imagine it'd be nice to have it integrated into the laptop.

[tourmalinetaco]

It may be redundancy; have a dedicated reader but if it breaks you don’t need to go to the station for another one.