From personal experience, that's probably not a good idea if you look South Asian or have a beard. I've been stopped a few too many times in London as part of a "random check" (everytime I hadn't shaved). I wouldn't want to increase the suspicion by being unco-operative.
From personal experience, that's probably not a good idea if you look South Asian or have a beard. I've been stopped a few too many times in London as part of a "random check" (everytime I hadn't shaved). I wouldn't want to increase the suspicion by being unco-operative.