The hon. Gentleman is right; it was a dilemma. In fact, I was just coming to the pragmatic arguments before moving on to the legal arguments.
The police point out that after a week of protests, no one was physically harmed, the protests did not escalate and there was no irreparable damage. That is all true, but if that is the police criterion for action to stop a crime, they would rarely enforce the law. Thousands of people’s lives were disrupted and criminal damage was done.
The police have also said that Trinity College did not complain about the vandalism while it was taking place; it did so only later that evening. It was only after Trinity College lodged a complaint that the police made arrests. But the police would not stand by and watch a burglar rob a jewellery shop just because the owner was not there formally complaining about it.
Others have said—this relates to what the hon. Member for Cambridge (Daniel Zeichner) said—that the police should not arrest people because that would make them martyrs. Well, they have arrested some people, so will they become martyrs? Who knows, and actually what difference does it make? The martyr argument could be used to justify just about anything.
A far bigger and more realistic concern is that if activists know they can get away with breaking the law, the law breaking will escalate. They will do it again, and others will be tempted to join them. Many will be quite attracted to the idea of breaking the law in front of the police, making a mockery of them. Some will push the limits, committing ever greater crimes, until ultimately the police do stop them. In this situation, appeasement will just encourage more law breaking. The pragmatic arguments do not stand up.
We then come to the legal arguments. During the week of action, the police put out a video explaining why they were not acting to stop these crimes. It was based on their interpretation of the Human Rights Act 1998, as set out in guidance from the College of Policing, to which my hon. Friend the Member for Ipswich (Tom Hunt) referred earlier. Under article 11 of the European convention on human rights, enshrined in UK law through the Human Rights Act, people have the right to peaceful assembly. I am sure that all Members of this House support that right—indeed, if it was threatened, I would be out there protesting for the right to protest.