There are no closed-circuit television cameras at the hostels or elsewhere in campus of the Jawaharlal Nehru University, where students and teachers came under attack of masked goons last evening, the Delhi Police said. The cameras are located only at the main gate of the university and the gates of the administration building. While it might help investigate how the goons entered the campus and left, it would not verify students' claims that the goons had barged into the university hostels, beat them up and vandalised property.