In 1991, Geidt and Anthony de Normann sued the journalist John Pilger and Central Television over the documentary "Cambodia: The Betrayal" in which they were accused of being members of the SAS secretly engaged in the training of the Khmer Rouge. Geidt and de Normann accepted ‘very substantial’ damages and all costs. In a related libel action Ann Clwyd MP, then shadow minister for overseas development, issued a public apology to Geidt and de Normann and agreed to meet all legal costs.