Sir Alan Bates has called for those responsible for the wrongful convictions of sub postmasters in the Capture IT scandal to be “brought to account”.
It comes after Sky News unearthed a report showing Post Office lawyers knew of faults in the software nearly three decades ago.
The documents, found in a garage by a retired computer expert, describe the Capture system as “an accident waiting to happen”.
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Post Office: The lost ‘Capture’ files
Sir Alan said the Sky News investigation showed “yet another failure of government oversight; another failure of the Post Office board to ensure [the] Post Office recruited senior people competent of bringing in IT systems” and management that was “out of touch with what was going on within its organisation”.
The unearthed Capture report was commissioned by the defence team for sub postmistress Patricia Owen and served on the Post Office in 1998 at her trial.
It described the software as “quite capable of producing absurd gibberish” and concluded “reasonable doubt” existed as to “whether any criminal offence” had taken place.
Ms Owen was found guilty of stealing from her branch and given a suspended prison sentence.
She died in 2003 and her family had always believed the computer expert, who was due to give evidence on the report, “never turned up”.
Patricia Owen (right) was convicted in 1998 of stealing from her post office branch. She died in 2003
Adrian Montagu reached out after seeing a Sky News report earlier this year and said he was actually stood down by the defending barrister with “no reason given”.
The barrister said he had no recollection of the case.
Victims and their lawyers hope the newly found “damning” expert report, which may never have been seen by a jury, could help overturn Capture convictions.
Read more: Post Office scandal redress must not only be fair – it must be fast
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What is the Capture scandal?
‘These people have to be brought to account’
Sir Alan, the leading campaigner for victims of the Horizon Post Office scandal, said while “no programme is bug free, why [was the] Post Office allowed to transfer the financial risk from these bugs on to a third party ie the sub postmaster, and why did its lawyers continue with prosecutions seemingly knowing of these system bugs?”
He continued: “Whether it was incompetence or corporate malice, these people have to be brought to account for their actions, be it for Capture or Horizon.”
More than 100 victims have come forward
More than 100 victims, including those who were not convicted but who were affected by the faulty software, have so far come forward.
Capture was used in 2,500 branches between 1992 and 1999, just before Horizon was introduced – which saw hundreds wrongfully convicted.
The Criminal Cases Review Commission (CCRC), the body responsible for investigating potential miscarriages of justice, is currently looking at a number of Capture convictions.
A CCRC spokesperson told Sky News: “We have received applications regarding 29 convictions which pre-date Horizon.
25 of these applications are being actively investigated by case review managers, and two more recent applications are in the preparatory stage and will be assigned to case review managers before the end of June.
“We have issued notices under s.17 of the Criminal Appeal Act 1995 to Post Office Ltd requiring them to produce all material relating to the applications received.
“To date, POL have provided some material in relation to 17 of the cases and confirmed that they hold no material in relation to another 5. The CCRC is awaiting a response from POL in relation to 6 cases.”
A spokesperson for the Department for Business and Trade said: “Postmasters negatively affected by Capture endured immeasurable suffering. We continue to listen to those who have been sharing their stories on the Capture system, and have taken their thoughts on board when designing the Capture Redress Scheme.”
