alexia lopez talking to us here on bbc— challenged.llenged. alexia lopez talking to us here on bbc news. now, the i us here on bbc news. now, the liberal democrat leader ed davey followed up allegations made by a campaignerfor sub—postmasters but was met with a conspiracy of lies. there has been lot of questions about his involvement during the time he was minister. sir ed who was minister for the post office between 2010 and 2012, says he spoke to various people connected with the post office and they all told him the horizon computer system was sworking. well, when i met alan bates, i listened to him very closely and i put his questions to my officials, to post office executives and indeed to the national federation of sub—postmasters, a bit like their trade union, because he had many questions, but they all told me the same thing, that the horizon system was working, that there weren't that many sub—postmasters involved, and it was clearly a conspiracy of lies. and what's become clear throughout this, through itv�*s programme and fr

live now to alexia lopez, a phd student at university of central lancastershire, who identified the bighis? yes. surprised. what does it feel like making a discovery like this? yes, i mean, it making a discovery like this? yes, i mean. it is — making a discovery like this? yes, i mean, it is amazing, _ making a discovery like this? yes, i mean, it is amazing, it— making a discovery like this? yes, i mean, it is amazing, it is— making a discovery like this? yes, i mean, it is amazing, it is surreal. l mean, it is amazing, it is surreal. we stumble across these discoveries accidentally, so it is so fun to be able to write up analysis on these kind of discoveries, so yes it is really exciting. mr; kind of discoveries, so yes it is really exciting.— kind of discoveries, so yes it is really exciting. my brain is clearly smaller than _ really exciting. my brain is clearly smaller than yours, _ really exciting. my brain is clearly smaller than yours, so _ really exciting. my brain is clearly smaller than yours, so you - really exciting. my brain is clearly smaller than yours, so you better exp