Que formed a new pro-democracy group following his arrest called the High Tide of Humanism Movement (). On 14 June 1990, he was arrested again. On 29 November 1991, after a half-hour sham trial he was sentenced to twenty years of hard labor plus five years' house arrest for treason after sending documents to Amnesty International; according to the Vietnamese national press agency, "reactionary forces used them to denigrate Vietnam" and "attempting to overthrow the people's government". Que's family and human rights groups reported that he was assigned to hard labor despite declining health. Vietnam's foreign ministry denied the statement.