It's a bit like me opening my house to the public but deciding I will be very strict about security. I will randomly subject members of the public to intimate searches and strip searches and if I take a dislike to somebody I give them a slap. Then saying it's OK because it's the rules and here are the rules. All not permissable. It is not lawful even if I have a fluorescent tabard on. The whole country has to abide by the law.