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POL00145108
From: Parsons, AndrewI GRO i
Sent: Wed 03/07/2013 10:43:11 AM (UTC)
To: Rodric Williams”
Cec: Gaisford, Rosie_ ~~ a
Subject: RE: Report: Lepton - Strictly Private and Confidential - Subject to Legal Privilege - Not for Wider
Circulation
Rodric
I've reviewed this. Please feel free to give me a call whenever is good for you.
Headlines:
e This report DOES relate to a live Spot Review. It is Spot Review 1. The transaction questioned in the report
is exactly the same transaction considered under SR1.
¢ —SR1 is about Horizon automatically reversing and correcting transactions when there is a power or comms
failure.
« SR1 is probably our most robust SR response so I'm comfortable that this report doesn't undermine our SR
response.
e However, the report does raise the fact that the transaction data available to POL (known as the "ARQ report"
— not sure what that is?) does not properly describe the true sequence of events when there is an automated
transaction reversal due to a comms/power failure.
e Inthe data available to POL, this type of automated reversal could be mistaken as a user generated reversal
by an SPMR. In turn, this could cause evidential/credibility issues in court proceedings.
e However, Fujitsu can access the raw Horizon data to provide clarity on these issues.
e The proposed solution in the report is for the data directly available to POL to be improved so to clearly show
the difference between SPMR reversals and automated reversals. This seems sensible.
e The ease/cost of delivering this change is unknown. It looks like it will probably need support from Fujitsu.
Kind regards
Andy
Andrew Parsons
Senior Associate
for and on behalf of Bond Dickinson LLP
Direct}
Mobile!
Fax: I
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From: Rodric Williams [mailto:rodric.williams@_
Sent: 03 July 2013 09:53
To: Parsons, Andrew
Subject: Fw: Report: Lepton - Strictly Private and Confidential - Subject to Legal Privilege - Not for Wider Circulation
POL00145108
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Andy - cam you pls take a look at this so you can give me an overview on the phone some time today.
Thanks Rod
From: Dave Posnett
Sent: Tuesday, July 02, 2013 04:19 PM
To: Rodric Williams
Subject: FW: Report: Lepton - Strictly Private and Confidential - Subject to Legal Privilege - Not for Wider Circulation
Rodric,
Any response to the email below yet?
Regards,
Dave Posnett I Accredited Financial Investigator
From: Dave Posnett
Sent: 14 June 2013 10:23
To: Rodric Williams
Cc: John M Scott; Dave Pardoe; Elaine Spencer; Helen Rose
Subject: Report: Lepton - Strictly Private and Confidential - Subject to Legal Privilege - Not for Wider Circulation
Rodric,
Please find associated a report from our Fraud Analyst, Helen Rose, in respect of Lepton SPSO. This
office doesn’t feature as part of our 2"’ Sight Spot Reviews, but the subject matter is Horizon (and indeed
Credence) related. Could I ask that you consider the report and feed any comments back, as it could be a
potential issue at some stage.
In summary, the specifics concern a ‘system reversal’ of a transaction following a system failure. This is
normal practice, but the Horizon logs (and Credence logs) indicate that the reversal is an ‘existing reversal’,
implying that the reversal was manually entered by the clerk/Subpostmaster.
I think there’s a remote possibility that this could be a problem in terms of using the data for
evidence/prosecution purposes, but nevertheless it is still a possibility. Myself or Helen are happy to talk
through anything that requires explanation.
Regards,
Dave Posnett I Accredited Financial Investigator
Security Team, 2" Floor Banner Wing, 148 Old St, London, EC1V 9HQ
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