The Counter Terrorism and Security Act of 2015 imposes a statutory duty on universities to have a "due regard to the need to prevent individuals from being drawn into terrorism". This means that institutions now have a statutory duty to participate in the government's Prevent strategy. This means UK universities have a legal obligation to narc on students who are too Muslim.
As a whole, universities have tried to finesse this attack on free expression this by defining violent radicalism as a signal of mental illness and telling us lecturers that we should feel obliged to refer struggling students to mental health services. Ultimately, though, when the intent and design of the rules is fundamentally bigoted, there is only so far that technical compliance can mitigate that.