Retiring MP aims to uncover truth of alleged Post Office computer system problems

No system-wide problems

The Post Office said it outlined its stance in a recent report into the investigation, separate to the independent Second Sight report, earlier this month. It said all remaining 80 claims that have not been completed, out of 150 originally made, will go through to mediation except those which have been subject to a previous court ruling. It said no system-wide problems have been found with Horizon.

During the BIS select committee evidence gathering session on 3 February, Ian Henderson of Second Sight was critical of the Post Office's approach. He said important data requested by the investigation team, including prosecution files, had not been delivered, months after they were requested.

At prime minister’s questions Arbuthnot asked:  “Is my right honourable friend aware that in connection with the Post Office mediation scheme, the Post Office has just sacked the independent investigator, Second Sight, and told it to destroy all its papers? Does he agree that it is essential that Second Sight’s second report should not be suppressed, but should be supplied to sub-postmasters and MPs, starting with the member for West Bromwich West (BIS chair Mr Bailey) and the Business, Innovation and Skills Select Committee?”

Prime minister David Cameron replied: “My right honourable friend makes an important point. I know that he has consistently raised the concerns of some sub-postmasters about the operation of the Post Office IT system and the matter of the Post Office mediation scheme. BIS is currently taking evidence on this issue, and it should be given all the relevant information. The government should not interfere with the independent mediation process, but I will ask the business secretary to write to my right honourable friend about his concern and to ensure that the Business Committee can do its job properly.”

Vince Cable's letter

Vince Cable’s letter in response to Arbuthnot, said: "The Post Office has not closed the scheme and the Post Office remains committed to working with Second Sight through the remaining period of their contract, and have stated that they will seek to continue to make available to scheme applicants an independent review by Second Sight (where one has not already been provided), and provide funding accordingly.”

Regarding the allegation that the Post Office will destroy evidence Cable wrote: "All parties involved in the mediation scheme are bound by confidentiality agreements and these include the requirement to appropriately store information and dispose of it when it is no longer needed (such as termination of a contract) or return it to the information owner. Post Office have confirmed repeatedly that they will not destroy documentation relating to the scheme, including information provided to (and returned by) Second Sight.”

In regard to Second Sight’s second report being supplied to sub-postmasters and MPs, Cable wrote: “Post Office have stated they will work with Second Sight to support the completion of this further report, so that it can be provided to applicants in the scheme and used to inform the ongoing mediation progress. The government cannot compel its publication and nor would we do so given the confidential nature of details within it.”

Cable concluded: “I note that, through Second Sight’s report and the subsequent investigations, there is no evidence of system-wide problems with Horizon and the conclusion has stood firm through nearly two years of investigation, As such, the priority must be to ensure that those applicants remaining in the scheme can have their cases considered swiftly and fairly, and I am hopeful that all parties involved will continue to work constructively to ensure this can happen.”

Computer Weekly timeline of events 

May 2009: Bankruptcy, prosecution and disrupted livelihoods – Postmasters tell their story

September 2009: Postmasters form action group after accounts shortfall

November 2009: Post Office theft case deferred over IT questions

February 2011: Post Office faces legal action over alleged accounting system failures

October 2011: 85 subpostmasters seek legal support in claims against Post Office computer system

June 2012: Post Office launches external review of system at centre of legal disputes

January 2013: Post Office admits that Horizon system needs more investigation

January 2013: Post Office announces amnesty for Horizon evidence 

January 2013: Post Office wants to get to bottom of IT system allegations

June 2013: Investigation into Post Office accounting system to drill down on strongest cases

July 2013: Post Office Horizon system investigation reveals concerns

October 2013: End in sight for subpostmaster claims against Post Office's Horizon accounting system

October 2013: Former Lord Justice of Appeal Hooper joins Post Office Horizon investigation

November 2013: 150 subpostmasters file claims over 'faulty' Horizon accounting system

September 2014: Fresh questions raised over Post Office IT system's role in fraud cases

December 2014: MPs blast Post Office over IT system investigation and remove backing

December 2014: Why MPs lost faith in the Post Office's IT investigation, but vowed to fight on

December 2014: MPs to debate subpostmaster IT injustice claims

December 2014: MP accuses Post Office of acting "duplicitously" in IT investigation

December 2014: MPs force inquiry into Post Office subpostmaster mediation scheme

January 2015: Post Office faces grilling by MPs over Horizon accounting system

February 2015: Post Office CIO would talk to any subpostmaster about IT problems, promises CEO

March 2015: Post Office ends working group for IT system investigation day before potentially damaging report

March 2015: MPs seek reassurance over Post Office mediation scheme