Your repetition does not make it so,Yes, it is correct.
I have said nothing about criminal law.You’re confusing criminal and contract law.
No, you can't. The principle of "revoking permission to be on the premises", as I already stated, applies only to the implied permission to be there given to members of the general public. It is separate to the express permission given by the sale of a ticket. The railway cannot unilaterally cancel a ticket.You can be asked to leave the railway, thereby revoking permission to be on the premises due to your behaviour, even if you have a valid ticket.
Wrong. Trespass requires that you be on the railway without permission. The ticket gives you permission, and for the reasons mentioned above, this can't be revoked by a member of staff unilaterally.All that needs to happen is for you to be asked to leave and refuse and the criminal offence of railway trespass is then complete.
I will accept, however, that a person (ticket-holder or not) filming a staff encounter in a provocative way is likely to be in breach of byelaw 6 (2) or (8) and liable to be required to leave the railway on this basis.
As you cannot state whether the person had a ticket or not, your anecdote is of no relevance, and as noted in post 148 and elsewhere, just because the police do something does not mean they are right.I’ve seen it happen: I asked someone to leave after he was abusive to me at a London terminal, he refused. BTP bundled him out of the station and warned him he would be arrested if he returned. Whether he had a ticket or not was neither here nor there (and nobody checked!).
It is a basic principle of British law that everything is legal unless Parliament (or another authorised law-making body) makes it illegal. See Halsbury's Laws of England.Can you cite it?
For the reasons I have already given, this isn't the case.As above you are required to obey instructions of staff and can be instructed to leave the railway if your behaviour is considered unacceptable.