This is already done in the visa process for countries such as China, and they do it the old fashioned way with paper and ink, then digitise it. This might also

This is already done in the visa process for countries such as China, and they do it the old fashioned way with paper and ink, then digitise it. This might also be how the UK end up doing it, if you don't have a smart phone with a fingerprint reader, or more likely because that will be harder to make work than they think.. Unlike China, it's possible to live in the UK without a smart phone (I do), last time I visited China it was basically impossible.