Sir Bernard Hogan-Howe: I think society is institutionally racist. We see lack of representation in many fields, of which the police are one. From judges, to doctors, to journalists, to editors, to governments. Look at our stop and search, it has been disproportionate. It's usually better but it has been very disproportionate. You're very much more likely to be stop-searched if you're a young black man. I can't explain that fully.