I suspect this case has origins less to do with the programming itself, and more to do with UK bureaucracy just not giving a shit, as with the post office scandal where authorities, including the legal system, blindly believing in the outsourced systems led to hundreds of false prosecutions and thirteen suicides (https://en.wikipedia.org/wiki/British_Post_Office_scandal).

The Home Office does manage to be both cruel and incompetent, which is the worst possible combination.

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