More shocking revelations from secret recordings obtained by Channel 4 News show that Post Office boss Paula Vennells was briefed about allegations of a "covert operations teams" - and that it could remotely alter sub-postmasters accounts from Fujitsu's HQ without them knowing.That was in 2013. Seven years later, in letters to a parliamentary committee, Paula Vennells insisted she had been told by Fujitsu this was not possible. Meanwhile the Post Office had taken innocent sub-postmasters to court, saying they must have stolen money when their accounts failed to add up - a miscarriage of justice that the tapes also reference. (Subscribe: https://bit.ly/C4_News_Subscribe) ------- Get more news at our site - https://www.channel4.com/news/ Follow us: Facebook - https://www.facebook.com/Channel4News/ Twitter - https://twitter.com/Channel4News TikTok - https://www.tiktok.com/@c4news Instagram - https://www.instagram.com/channel4news/