Others were offered lesser charges of sending indecent material through the mail if they testified against the five. These charges related to letters that the accused exchanged detailing various sexual fantasies. It eventually became clear that one person had corresponded with most of the accused but had not been tried. After the trial, it emerged that there had been a cover-up: Mr "Henderson" had worked for MI6 and had been a High Commissioner in Canada. Mr "Henderson" was revealed in November 1980, in the magazine "Private Eye", to be Sir Peter Hayman.