In recent weeks, the U.K. has been captivated by the unfolding Post Office Horizon scandal, drawing global attention to the peculiar incident sparked by a tech glitch. As curiosity grows worldwide, a concise overview of this ongoing saga is essential.
The Post Office Horizon scandal emerged between 1999 and 2015 when glitches in the accounting software used by the U.K. Post Office led to the appearance of substantial sums of money going missing from over 700 post offices. Post Office Limited, the private company overseeing the state-owned service, initiated legal action against sub-postmasters and mistresses, individuals responsible for managing Post Office outlets, seeking compensation for the purportedly missing funds.
Over a span of 16 years, more than 700 people faced convictions for the alleged accounting discrepancies, which the Post Office attributed to theft. However, a landmark U.K. High Court judgment in 2019 debunked this narrative, concluding that individual sub-postmasters and mistresses were not at fault for the financial irregularities. Instead, the culprit was identified as the accounting software, known as Horizon, mandated for use by sub-postmasters and mistresses to calculate profits and losses at each branch.
Trade magazine Computer Weekly delved into the intricacies of Horizon’s malfunction, uncovering a glitch that caused the screen to freeze when an operator attempted to input money. Subsequently, every click resulted in a repeated transaction. Another identified bug led to the duplication of entries without any human input. These revelations were just a glimpse into the multitude of issues discovered within the flawed software, exposing a complex web of errors that had far-reaching consequences for the individuals falsely implicated in the scandal.
WHY IS THIS WHOLE THING SO SCANDALOUS?
Even after the Post Office executives knew that the software system was at fault as early as 2013, when it was raised by an independent team of forensic accountants brought in to investigate why the money kept going missing, the company allegedly sought to keep that information quiet. The BBC reports that the company fired the accountancy team finding the issues.
The notion that computers can’t possibly be wrong—despite overwhelming evidence to the contrary—remains strong among those who were involved in investigating the missing money within the Post Office. Just this week, one investigator who prosecuted a postmaster who has since died, but whose prosecution was quashed posthumously, said he still believed the man was guilty. The investigator, Raymond Grant, had to be legally compelled to appear at the inquiry, and said he had been too busy making Christmas meals and walking his dog to adequately prepare for his appearance at the inquiry.
The inquiry continues, while the Post Office and Fujitsu have apologized in front of the inquiry. Paul Patterson, Fujitsu’s European chief, told the inquiry last week that “This is a decades-old miscarriage.” He added: “I think Fujitsu more recently, as we’ve understood more, we have clearly let society down and the sub-postmasters down.”