If you knew your IT system was unreliable, wouldn't you keep some manual checks to make sure it doesn't go wrong? Not if you're Post Office, and desperately looking for savings. Especially if you've just lost your biggest revenue source, in the form of the Benefits Agency and the cash in the tills it provides. In the final episode of our first (but not last!) mini-series on the Post Office scandal, we examine how the Post Office 'forgot' what it knew about Horizon's unreliability, and then removed key guard rails that might have prevented false prosecutions. Opening grab from Mr Stevens KC (Counsel Assisting the Inquiry) and Kathryn Parker (former Post Office training), 13 January 2023. Subsequent grab from Mr Beer KC (Counsel Assisting) and Susan Harding (former Post office Business Process Architect), 22 February 2023. For thorough and detailed coverage of the Post Office Scandal, start with the reporting of Nick Wallis, including his BBC podcast, the Great Post Office Trial. Now for some appropriately bureaucratic disclaimers.... Those of us in the employ of the State Government speak in a strictly personal capacity, consistent with the Public Sector Code of Ethics that permits public servants to promote an outcome in relation to an issue of public interest - in this case, the betterment of the public service. Nothing we say should be taken as representing the views of the Government or our employers. While we have tried to be as thorough in our research as busy full time jobs and lives allow, we definitely don’t guarantee that we’ve got all the details right. If you want rigorous reporting on Robodebt, we recommend the work of Rick Morton at the Saturday Paper, Chris Knaus and Luke Henriques-Gomes at the Guardian, Ben Eltham at Crikey, Julian Bajkowski at The Mandarin, and of course, the Robodebt Royal Commission itself. Please feel free to email us corrections, episode suggestions, or anything else, at [email protected]. Thanks to PanPot audio for our intro and outro music. 'Til next time!