In October 2019, Professor Tan who was teaching a digital marketing course sent an email to the students, which warned the students not to deliver any political messages in class presentations or they will be given zero marks. The e-mail caused dissatisfaction among the students.[61] Pro-democracy group Frontline Technology Workers pointed out that the presentations were relevant to the course although it was touching the social taboo.[62] They also highlighted academic journal articles which discussed the relationship between politics and marketing.[63][64][65] Students' Union questioned university's promise on academic autonomy.[66]