Vice- chair Jan Lintsen responds on behalf of the Executive Board regarding the course of the demonstration: 'We deeply regret that we had to file charges. However, given the severity of the situation created by some of the demonstrators, this has become inevitable. We consider the right to protest very important, but we must also ensure the safety of all students and staff. We urgently ask demonstrators to voluntarily leave our premises to prevent further escalation. We hope this request will be heeded so that police action will not be necessary.'

• When does the UvA file a report and what does that mean?

• When is the police called in?

• What do the demands of the demonstrators concerning international collaborations mean in practice?