My hon. Friend is right, but whenever attending a call-out to a mental health unit—just as in attending any other event in the community—the police officer would have deployed in their patrol car wearing their full kit. They would already have been wearing the camera and would have switched on it on as they were entering the situation, if they thought that were necessary. The much more likely scenario, as perhaps would have been the case with James Herbert, is of people being called into a situation when they are not out on the street, but are just nearby and lending a hand. The fixed cameras in the building may be obscured by those doing the detention, so I also see real merit in body-worn cameras being used in those situations.
This is not just about how to ensure that acute, immediate interventions are handled properly. It is also about the additional training that might be offered to police and mental health workers to make sure that these situations do not arise in the first place. Training is key. That goes without saying for mental health workers, who, by vocation, understand this stuff very well indeed, but the police are much less confident in dealing with people with mental health issues than they should be.
Training for the police so that they can spot those signs and intervene appropriately with concern and care would be helpful and would prevent a large number of the instances that we are debating. There are techniques for reassuring people, for de-escalating, and for managing the anxiety that often manifests itself in people with mental illness. Equipping police with those skills would be very welcome indeed.