The same night,Censor Wang filed suit to the emperor accusing the magistrate and his son of mutiny against the throne.The emperor personally reviewed the evidence,only to discover that the cap was made of sorghum stems and the gown a dirty yellow rag.Upon summoning Yuan-feng,the emperor saw that he was retarded,and determined that Censor Wang had falsely accused the magistrate.The emperor declared Censor Wang guilty of libel and sent him to do military service in YunNan.