In October 2016, after the Legislative Council elections resulted in the election of certain pro-Hong Kong independence legislators to the Legislative Council, Yuen and Chief Executive Leung Chun-ying took an unprecedented move to launch a legal challenge against the Legislative Council President Andrew Leung in order to seek the disqualification of two pro-independence Youngspiration legislators-elect Baggio Leung and Yau Wai-ching over the duo's controversial behaviour during the oath-taking ceremony at the inaugural meeting. Despite Yuen repeated statement of not seeking for the NPCSC interpretation of the Basic Law, in November NPCSC interpreted the Basic Law Article 104 and set a framework on how to take the oath and the consequences of not fulfilling it. Yuen refused to resign and defended the NPSCSC interpretation, arguing that both judicial independence and interpretation of Basic Law could co-exist, adding the ruling by Beijing was not targeting the two legislators but instead setting out the general example as an aid to understanding Article 104. On 8 November, hundreds of lawyers joined a silent march against Beijing's interpretation of the Basic Law, claiming it harms judicial independence. As a result, the two legislators were ousted from the Legislative Council by the court on 15 November.