Re: Home Office's dream of a State ID Card would be a reality
I like your confidence in the system, but it might be a little misplaced.
This fraud [1] happened in my city. Followed the case at the time and the biggest issue seemed to be finding the evidence to get a conviction because of the lack of traceability of votes cast. I think it would be a lot easier now with postal voting (and not just me [2]) and may have happened in the last election [3] in my area.
[1] https://www.bbc.co.uk/news/uk-england-derbyshire-23461729
[2] https://www.telegraph.co.uk/news/uknews/law-and-order/11560017/Postal-voting-fraud-is-easy-electoral-commissioner-says.html
[3] https://www.derbytelegraph.co.uk/news/derby-news/former-derby-city-councillor-charged-4996796