Hizb ut-Tahrir was represented at six per cent of the events even thought the NUS has a policy not to give the organisation a platform.
The research also found eight events were moved off campuses following complaints while another ten were cancelled.
In other moves, 17 video or audio clips featuring the late terrorist Anwar al-Awlaki was shared online with students.
Rupert Sutton, Head Researcher at Student Rights said: "These statistics demonstrate that the presence of extremist preachers on campus is not a figment of people's imaginations, but a serious issue that universities cannot afford to be complacent about. [telegraph.co.uk] Read more
