The former Post Office boss, Paula Vennells, has been testifying at the Inquiry examining the Horizon IT scandal.It's the first time Paula Vennells has spoken publicly in nearly ten years.The hundreds of wronged Post Office workers, and their families, have been keenly anticipating her evidence, as, on her watch, prosecutions continued, despite mounting evidence that there was something wrong with the system.On the Sky News Daily, Sarah-Jane Mee has been in Fenny Compton, in the village hall where Alan Bates began his campaign against the Post Office, to meet the sub-postmasters whose lives were ruined by Horizon.Plus, one former sub-postmistress, Nicole, shares her story for the first time.Producers: Emma Rae Woodhouse, Soila ApparicioEditor: Wendy ParkerPodcast Promotion: Jada-Kai Meosa John