Maybe only accept applications by post.
There's no way to cheat at that point. You either have what they need (yay btw) or its not a fit
I do agree that once someone gets through an initial filter and screen they should be willing to meet in person. That has costs on both sides but, during the tech boom, one heard a lot of complaints by applicants that they’re no going to travel for interviews, dinner, etc. <shrug>