Unveiling Betrayals: The Aftermath of Stasi Surveillance

Guardian investigative editor Paul Lewis and investigative reporter Rob Evans detail their decade-long investigation into undercover policing. At least 139 officers were given fake identities to monitor the inner workings of more than 1,000 political groups. Jessica, a former member of one of those groups, describes the impact of discovering that a man with whom she began a relationship in 1992 was actually an undercover cop The Undercover Police Scandal: Love and Lies Exposed is available on ITVX. Help support our independent journalism at theguardian.com/infocus