The university's faculty-led Student Discipline Committee, with the support of the university council chairman Lam Tai-fai, expelled one student and suspended another for one year because the students posted on the "Democracy Wall" bulletin board in 2018. The students' union managed the bulletin board then. The students had posted messages remembering the fourth anniversary of the "Umbrella Movement" democracy protests of 2014. They also said Hong Kong should be independent from the People's Republic of China. Two more students were ordered to do community service as punishment. 