Song Jing
In 704, Huan was made the assistant chief judge of the supreme court (司刑少卿, "Sixing Shaoqing"). At that time, Wu Zetian's lover Zhang Changzong was accused of allowing the fortuneteller Li Hongtai (李弘泰) to prophesy that Zhang would be emperor one day. The censor Song Jing advocated that Zhang be arrested, a suggestion that Wu Zetian rejected. At Huan's further urging, Wu Zetian allowed Song to investigate, although she soon ordered the investigation terminated. Meanwhile, at that time, the chancellor Li Jiao advocated that the people who suffered at the hands of Wu Zetian's secret police officials, whom she entrusted with great power early in her reign, be restored in their reputation, a suggestion that Wu Zetian initially tabled, but after Huan suggested a compromise—that such restoration be limited to persons other than those accused of being involved in three military rebellions against her (those started by Li Jingye the Duke of Ying, Li Chong the Prince of Langye, and Li Zhen the Prince of Yue—Wu Zetian approved the proposal.