, seen in 2013 After the success of the JFSA in the
Bates case against the Post Office, the organisation began to campaign to highlight the government's handling of the Post Office. The alliance raised £100,000 through crowdfunding, to complain to the
Parliamentary Ombudsman that the government had failed in its duty by allowing the Post Office to wrongly prosecute SPMs. The government resisted the complaint and declared that it had been lied to. The government resisted requests for a statutory inquiry for months before acceding to an independent inquiry. On 26 February 2020, Prime Minister
Boris Johnson appeared to commit to an independent inquiry but was equivocal. Evidence of the legal costs in the Bates case was heard by parliament's
Business, Energy and Industrial Strategy Committee on 10 March 2020. On 19 March 2020, in a debate in the House of Commons,
Kevan Jones MP criticised former Post Office chief executive Vennells for her role in the scandal. The terms specifically excluded the Post Office's prosecution function, the Horizon group damages settlement, and the conduct of current or future litigation. Of the review's terms of reference, Lord Arbuthnot asked in the House of Lords chamber on 6 October, "[W]hy have the Government excluded these most important things?" The minister replied that the
Bates settlement agreed was full and final and the Post Office was not currently conducting any private prosecutions and had no plans to do so.
First round of non-statutory hearings The non-statutory inquiry, now titled
The Post Office Horizon IT Inquiry and led by Sir
Wyn Williams, began work in autumn 2020 and issued a call for evidence on 1 December 2020. The first public hearing took place on 15 January 2021. During the non-statutory inquiry, two public hearings were held in early 2021. A preliminary hearing on the provisional List of Issues was held on 8 November 2021. Neil Hudgell, representing SPMs, said "Now Post Office officials must face criminal investigation for maliciously ruining lives by prosecuting innocent people in pursuit of profits", and called for the prime minister to convene a judge-led inquiry. After the subpostmasters' successful appeals on both grounds one and two of abuse of process, in an article headed "Calls grow for
SRA and police to investigate Post Office lawyers", Hudgell wrote that the Post Office engaged in "legal gymnastics to seek to persuade the court away from finding a clear systematic abuse of process of the criminal law", adding "the
SRA and
BSB [Bar Standards Board] should investigate whether anyone should be held to account amid professional concerns about who was responsible for disclosure issues". Solicitors for subpostmasters wrote to the
Department for Business, Energy & Industrial Strategy asking it to re-establish the inquiry on a statutory footing and to reconsult on the terms of reference, saying: "The department should be called as witnesses under oath, not have effective control of the inquiry ... The Post Office wrongly prosecuted so many upstanding pillars of the community and its owners want to mark (their) own homework – that is unconscionable."
Conversion to a statutory inquiry On 19 May 2021, the government announced that an extended
statutory inquiry into the scandal would deliver its conclusions in autumn 2022. Sir Wyn said that the inquiry would produce a statement of approach and that, in September 2021, a further statement would set out all relevant details. The extant non-statutory inquiry was formally converted to a statutory inquiry on 1 June 2021 with additional powers, including the ability to compel witnesses and demand evidence, with potential fines or imprisonment for non-compliance. Scully said he and Sir Wyn had agreed that the context of the events had changed after convictions were quashed and hundreds more were expected to follow. Boris Johnson said in May 2021: On 28 July 2021, the
Department for Business, Energy & Industrial Strategy issued its fourth statement of approach, which included the terms of reference. After setting out preliminary and organisational matters – the appointment of solicitors and counsel to the inquiry, establishment of a website and of premises, etc. – the statement set out terms, in essence: {{ordered list|type=upper-latin On 13 February 2022, in a report prior to the start of the hearings, the BBC quoted a prosecuted, jailed and subsequently cleared subpostmaster: "I want someone else to be charged and jailed like I was." This request was later repeated by other subpostmasters.
Phases 1 to 4 of the Statutory Inquiry The Phase 1 hearings, covering Human Impact, opened on 14 February 2022 at Juxon House in the
City of London. The Phase 2 hearings, covering the Horizon IT System procurement, design, pilot, roll out and modifications, started in October 2022. They were streamed online, as were the later phases of the inquiry. The inquiry also investigated whether the Post Office and ICL's owner,
Fujitsu, knew about the faults.
Richard Moorhead, Professor of Law and Professional Ethics at the University of Exeter, said in an oral submission: Immediately after the November hearing, Williams said he would ask Post Office Limited, IT supplier Fujitsu, and the Department for Business, Energy & Industrial Strategy to waive privilege in respect of material relevant to the terms of reference, and he set a deadline for a response. On 16 November, Williams reported that all four parties had responded within the timescale specified and added "The response of POL, on any view, goes a very long way towards meeting the request I made of them. It is clear to me that in respect of many of the most crucial lines of investigation for the Inquiry POL has waived legal professional privilege." The Post Office published its response to the request on 15 November 2021. One commentator, Elisa Wahnon, wrote that although BEIS was prepared to waive privilege: The Phase 3 hearings, covering operational issues, were held between January and March 2023. Phase 4 hearings, covering action against sub-postmasters and others, were held between July 2023 and January 2024. In the course of these hearings, Paul Patterson, director of Fujitsu services in Europe, admitted there were "bugs, errors and defects" with the Horizon software "right from the very start" and reiterated the firm's apology for its part in the scandal.
Interim report The inquiry issued an interim report on 17 July 2023. Its eight recommendations were: • The Horizon Compensation Advisory Board (HCAB) should not be prevented from monitoring individual cases. • The HCAB shall produce written reports in respect of each of their meetings. • The HCAB shall consider whether full and fair compensation is being paid. • Membership of HCAB should be increased to ensure that it has sufficient capacity. • The government should within 28 days seek directions under section 306 of the
Insolvency Act 1986 to ensure that compensation payable to bankrupt claimants is not diverted to insolvency practitioners. • The government should publish proposals for ensuring that applicants to all schemes are treated equally and fairly with regard to income tax, capital gains tax and inheritance tax. • The government should ensure that legislation is enacted to allow compensation under group litigation orders to be made to applicants after midnight on 7 August 2024. • No applications for compensation to the Horizon Shortfall Scheme should be entertained after such date as agreed by the minister, the Post Office and the HCAB. The government accepted the recommendations in full or in part on 26 October 2023.
Phases 5 to 7 On 9 April 2024, the inquiry commenced Phases 5 and 6 to cover "[r]edress, access to justice, Second Sight, Complaint Review and Mediation Scheme, conduct of the group litigation, responding to the scandal, governance, monitoring of Horizon, contractual arrangements, internal and external audit, technical competence, stakeholder engagement, oversight and whistleblowing". Fifteen weeks were scheduled for the hearing of evidence. The resumed hearings began with a day for the evidence of
Alan Bates, who described Post Office officials as "thugs in suits" and contended that the government should have been involved far earlier. Former MP
Lord Arbuthnot, appearing in week one, told the inquiry: "[Post Office management] knew there was a large number of bugs in the system that they hadn't told MPs about. They were operating some sort of behind-the-scenes deception process which suggests to me now that they were stringing MPs along in order to preserve the robustness of Horizon, the existence of Horizon and possibly the existence of the Post Office". Other witnesses gave evidence in weeks one and two. Alan Cook, former managing director of the Post Office, expressed regret, both for an email in which he wrote that subpostmasters had their "hands in the till" and for not realising sooner that the organisation itself was prosecuting victims of the scandal; he had assumed that the police or the Crown Prosecution Service were responsible for the decision to prosecute. Adam Crozier, former CEO of Royal Mail, said he was not aware of the prosecutions brought by Post Office Ltd against subpostmasters during his tenure. David Miller, former Post Office COO, told the inquiry that he should not have said to the board that Horizon was "robust and fit for purpose". Rodric Williams, a litigation lawyer for the Post Office, said there was a "bunker mentality" among staff in relation to the media's coverage of the Horizon system; asked by a journalist when was the last time the Post Office did research into subpostmasters' satisfaction with it, Williams said: "We don't need to do research ... the vast majority of our agents and other users work with it just fine". During week three, Susan Crichton, former general counsel of the Post Office, testified that problems in the system came to be referred to as 'branch exceptions' rather than 'bugs' and agreed that this demonstrated the use of 'smoke and mirrors'. Angela van den Bogerd, a former senior manager at the Post Office, was questioned about her statement to the High Court in 2019 in which she said she had only become aware in 2018 that transactions could be input to Horizon without a subpostmaster's knowledge; emails given to the inquiry showed she was told about this in 2010 and 2014. Van den Bogerd told the inquiry that she did not remember receiving the December 2010 email, calling it "very strange". In week five, Simon Clarke, who advised the Post Office to stop prosecuting branch owner-operators, testified that he was "now sure" that the company "must have deceived" him because it failed to provide him with "highly relevant material" and that his law firm "had been mis-instructed" by the Post Office about whether the IT system could be accessed remotely by Fujitsu staff. In week six, Alisdair Cameron, Post Office
CFO and former interim chief executive, told the inquiry that former CEO Vennells had been "clear in her conviction" that nothing had gone wrong with Horizon and did not believe there had been miscarriages of justice. Paula Vennells testified over three days during week seven. Before her appearance, she was called on by former subpostmistress and campaigner Jo Hamilton to tell the truth at the inquiry as she was "heading into the corner where there’s no way out". When she began testifying, Vennells said that the Post Office's structure and the failure of some employees to pass on information meant that she was unaware that subpostmasters were being required to make good Horizon shortfalls or being wrongly prosecuted. Given evidence that showed that she had been told in 2011 that remote access to Horizon was possible, she said that she had not understood what she had been told. Vennells agreed that "the right and honest thing for the Post Office to have done" would have been to let the CCRC know immediately in 2013 about the doubts over the evidence of Gareth Jenkins, the Fujitsu engineer who designed the Horizon accounting system and who had withheld information from the courts about bugs in the software. Testifying over two days in week eight, former Post Office chair
Alice Perkins said that, while she was warned about potential faults in the Horizon IT system when she took up the role in 2011, at the time she did not make a link between those faults and the prosecution of subpostmasters. She also said that the 2013 Clarke advice, raising concerns over expert witness statements, had not reached her. During week nine, Andrew Parsons, a partner at Womble Bond Dickinson (a law firm advising the Post Office for more than seven years), testified that in 2013 he had counselled the Post Office to remove apologies from letters sent to subpostmasters and to "maintain a more cold, procedural approach", writing that apologising would be "admitting some degree of culpability". In a 2015 email, he wrote that the Post Office could "start attacking the postmasters' credibility by calling out Thomas, Misra and Hamilton as the liars and criminals that they are". On 18 June, Ian Henderson and Ron Warmington of the forensic accounting company Second Sight gave evidence. They stated that the Post Office had interfered with their investigation, and seemed to be concerned mostly with self-protection. By February 2015, Henderson said, he felt they "were dealing with a cover-up" by the Post Office "and possibly a criminal conspiracy". They also stated that they had been the subject of legal threats by the Post Office. Also testifying in week 10, Richard Christou, former CEO and executive chairman of Fujitsu Services Holdings, said he had always regarded the rollout of the Horizon IT system as one of Fujitsu’s "major successes". In week eleven, Gareth Jenkins, the former senior Fujitsu engineer who played a leading role in specifying and designing the Horizon system, testified that he had "thought the system was working well" and that he had been "confident, possibly wrongly so, [bugs] were quickly fixed and weren't left to fester in the system and have a large impact". He admitted that, during prosecutions of subpostmasters, he changed crucial expert testimony at the request of the Post Office, in particular to state that "it looked as though [Seema] Misra had stolen money rather than that it was incompetence".
Tim Parker, part-time PO chairman from 2015 to 2022, gave evidence on 3 July. Questioned about the report he commissioned from barrister Jonathan Swift, he said he regretted accepting internal legal advice which meant the full findings of the report were not shown to the PO board,
UK Government Investments (UKGI) or the responsible minister. Former Post Office minister
Ed Davey, who was in office between 2010 and 2012, said that during that time he was "lied to" about "serious flaws" in the Horizon IT system. Appearing before the inquiry in the penultimate week of Phase 6,
Vince Cable, business secretary between 2010 and 2015, said he was unaware of the prosecutions, despite being in charge of the organisation while in government, and that he agreed with Alan Bates's description of Post Office middle-management as "thugs in suits". Phase 7, covering current practice and procedures and recommendations for the future, commenced on 23 September 2024 and lasted six weeks. In the first week of this phase, it was revealed that in May 2024, Fujitsu's Patterson had written directly to
Nick Read, chief executive of Post Office Ltd, rejecting a request by Post Office investigators for Horizon IT data to support a criminal case against a sub post office owner. Patterson wrote that the request was "inappropriate" and that the Post Office was "well aware there have been and there continue to be bugs, errors and defects in the Horizon system". Appearing before the inquiry over three days in October, Read said he had not been made aware of the "scale and enormity" of the scandal before taking the CEO job in 2019. He expressed surprise at a survey (commissioned by the inquiry) which indicated that subpostmasters are still using their own money to make losses good, while admitting that new subpostmaster contracts which still refer to the Post Office's investigatory powers might be "heavy-handed". The inquiry was told in the fourth week that, as recently as 2023, Post Office executives changed data on the Horizon IT systems used by subpostmasters, without their knowledge.
Kemi Badenoch, who had been
Secretary of State for Business and Trade from February 2023, told the inquiry in its final week that it was "extremely disappointing" that it took the
2024 ITV drama about the Post Office scandal to get the government to accelerate compensation payments for wrongfully prosecuted subpostmasters. Testifying again in the final week of the inquiry was Fujitsu's Patterson who contended that the previous seven months of inquiry hearings had revealed that many organisations were to blame for the scandal, not just Fujitsu and its faulty software. Closing statements were heard on 16 and 17 December 2024, after which the inquiry began
Maxwellisation prior to drafting the final report. In his end of year message, Sir Wyn said, " [T]he evidence I have read and heard throughout the Inquiry has made a deep impression upon me and emphasised the scale of the hardship and suffering endured by those affected by the scandal."
Final report The 162-page volume one of Sir Wyn's final inquiry report was published on 8 July 2025. The Post Office, Fujitsu, and the government have until 10 October to respond. Sir Wyn found that Post Office managers "maintained the fiction" that Horizon was accurate. In the report, it was revealed that at least 13 suicides had been linked to the scandal and at least 59 further people had had suicidal thoughts, of whom at least ten had attempted suicide. == Data leak ==