March 2018 Legislative Council by-elections for the four seats left vacant by the disqualified legislators over the oath-taking controversy

In the March 2018 Legislative Council by-elections for the four seats left vacant by the disqualified legislators over the oath-taking controversy, three candidates were disqualified by the Electoral Affairs Commission (EAC) returning officers, including Demosistō's Agnes Chow on the basis of that she "cannot possibly comply with the requirements of the relevant electoral laws, since advocating or promoting 'self-determination' is contrary to the content of the declaration that the law requires a candidate to make to uphold the Basic Law and pledge allegiance to the [Hong Kong Special Administrative Region]".