Has a lot of potential for a Papers Please style game, as counterintelligence instead of immigration.
I couldn't figure out how to send the checked documents, even after filling it out, putting the documents in the tray and clicking Send, nothing happened. Some guidance for the player on what is missing would be great.
Other than that, I think you have a solid foundation to make a more complete game, there's a real market for good Papers Please-esque games that is still not very well represented.