In May 2009 a computing trade magazine published an article about seven sub-postmasters. Their branch accounts showed money missing that they said they had never taken, and the accounting system that showed it missing was called Horizon.
The Court of Appeal recorded what happened next in a single sentence. “In 2009 a periodical, Computer Weekly, published a report referring to problems with the Horizon system,” the judgment reads, and the public response of the Post Office was to assert that Horizon was a robust system. caselaw.nationalarchives.gov.uk
Parliament was told too. On 14 January 2010, in Commons topical questions, Jacqui Smith told the postal affairs minister that a growing number of sub-postmasters faced action over money they believed had gone missing because of shortcomings in a computer system. Pat McFadden replied that the Post Office had looked into the complaints and had faith in the integrity of Horizon. hansard.parliament.uk That exchange is eight months after the magazine published and fourteen years before anything changed.
It kept being said. A minister made a statement to the House in July 2013 about an interim report from forensic accountants. In June 2015 a Westminster Hall debate heard that the campaigners had lost faith in the Post Office’s willingness to investigate itself properly, and days later an MP told the Prime Minister at question time that sub-postmasters had lost their reputations, their savings and in the worst cases their liberty, and called it a national disgrace. hansard.parliament.uk Through all of it Computer Weekly kept a dated record running, and a freelance journalist, Nick Wallis, crowdfunded his way through the High Court case and published the archive himself. postofficescandal.uk
Then ITV screened a drama in the first days of January 2024, and on 10 January the Prime Minister stood up in the Commons and announced new primary legislation so that those convicted because of Horizon would be, in his words, swiftly exonerated and compensated. hansard.parliament.uk commonslibrary.parliament.uk
After The Act
The law passed. The Post Office (Horizon System) Offences Act 2024 received Royal Assent on 24 May 2024 legislation.gov.uk, and the House of Commons Library was blunt about what sort of thing it was: using primary legislation to overturn criminal convictions is unprecedented, it wrote, and the approach raised concerns about constitutional propriety, because it is for the courts to make judicial decisions. commonslibrary.parliament.uk
Two years on, the Ministry of Justice publishes the count. As at 30 June 2026 it had assessed 1,010 cases and identified 619 people with at least one conviction quashed by the Act, amounting to 2,249 convictions in total, because many people carried more than one. It has written to 583 of them. gov.uk
That leaves a number the department states plainly and that is easy to read past. There are thirty people whose criminal convictions Parliament has quashed whom the Ministry of Justice cannot write to, because it has not been able to confirm where they live. gov.uk Their records have been corrected. Nobody has been able to tell them.
The money is a longer story. By 31 July 2026 about £1,666 million had been paid to more than 13,300 claimants across the redress schemes. The largest of them, the Horizon Shortfall Scheme, had received 14,609 claims and settled 12,260; a further 1,023 people were holding offers they had not accepted and 1,326 claims were still being assessed. The appeals process attached to it had 120 full claims and had settled twenty-six. gov.uk
Sir Wyn Williams, who chairs the statutory inquiry, had already given his view of how that had gone. Volume 1 of his final report, published on 8 July 2025, found that claimants to the Horizon Shortfall Scheme did not receive full and fair redress, and that the Post Office and its advisers had adopted what he called an unnecessarily adversarial attitude. He made nineteen urgent recommendations and set the Government a deadline of 10 October 2025. postofficehorizoninquiry.org.uk The Government met it, responding on 9 October and accepting all but one. gov.uk
Comment
The Question Underneath
Nobody has been charged. There is a Metropolitan Police investigation, and in the House on 8 July 2025 the postal affairs minister said that a hundred officers were working on it and that they had identified a series of people who were of interest to their inquiry. hansard.parliament.uk People of interest is not a charge, and this piece will not treat it as one.
Fujitsu, which built and ran the system, told The Independent in July 2026 that its conversations with Government about a contribution to compensation were ongoing, and that its place on a supplier framework was consistent with the voluntary pause it had put on bidding for new public sector work. As of that date it had paid no compensation directly to sub-postmasters. independent.co.uk The public purse has funded the redress.
The inquiry itself is not finished. Its remaining volumes, which will deal with how the scandal was caused, are being published together, the timetable has slipped because they turned out to be larger than expected, and the inquiry has entered the Maxwellisation stage, in which anyone criticised is given the chance to respond before publication. postofficehorizoninquiry.org.uk Nothing in those volumes exists yet, and nothing here guesses at them.
So the uncomfortable part is not that journalism failed. It plainly did not: the record was complete, dated, published and repeatedly put in front of Parliament. The uncomfortable part is what the record turned out to be worth on its own.
The minister responsible pushed back on that reading at the time, and he is entitled to. On 29 January 2024 Kevin Hollinrake told the Commons that measures were already being put in place, that things had been happening at pace before the dramatisation, and that ministers are public servants and members of the public, so the impetus behind the work was raised by the outcry. hansard.parliament.uk A Conservative backbencher, Rob Butler, put the same thought the other way round the following day, saying the Government had been acting well in advance of the drama, but that the programme made the public aware in a way the news had not been able to. hansard.parliament.uk
Both of those are true, and together they describe the mechanism. The evidence was necessary and it was not sufficient. What closed the gap was attention, and attention arrived fifteen years late by a route no newsroom controls.