Post Office Horizon - the technical view

[Steve]

FFS they wrote the software using Visual Basic 

A language for rapid development of software of low trust and allows use of low qualified quick recruited staff.  No way should they have used it for a banking product.

Worse, from their own internal report: https://www.postofficehorizoninquiry.org.uk/evidence/fuj00080690-report-eposs-pinicl-task-force

'whoever wrote this code clearly has no understanding of elementary mathematics or the most basic rules of programming'

[Uncle Mort]

As usual the government bought a Fiesta at a Rolls Royce price.