jonmorris wrote:

Of course, I have no complaint about BTP here - they weren't involved
at all (which IS the problem - they weren't even notified until I told
them later). Since I've called them, they have given me a reference and
called me back to check I am okay. In due course, I am going to them to
make a formal statement.

As a matter of interest, as you were going to Hatfield what would you
have done if the security men hadn't asked you to leave the train
there? Also (and I realise this may be difficult or impossible to
answer) did you get the impression that the troublesome couple and
child were intending to travel beyond Hatfield?