This article reports on the results of a mixed-methods survey of 152 self-selecting Muslim university students sampled across a range of higher education institutions across the UK in late 2019. The study explores perceptions of the impact of the new Prevent Duty among UK Muslim students, especially concerning questions of self-censorship and self-silencing for fear of referral to Channel (a multi-agency board tasked with early-state support). Beyond clear evidence of self-censorship and self-silencing in response to Prevent, this study also highlights the damage done to the staff-student relationship and the mental health of individuals targeted by Prevent.