I recently boarded a train at Clitheroe station with a ticket valid up until Bolton as I'm a student at Bolton university and had a lecture there. Whilst making the journey, I decided to continue past Bolton to Salford Crescent to meet up with friends. As soon as I arrived at Salford Crescent there was a ticket inspector and I approached him and asked to pay for a ticket extension. She refused to do this and took down my details and issued a fine. I've been reading the extension of tickets rules here and cannot work out whether or not I've broken the rules as I the ticket inspector on board the train was locked away in the unused drivers cabin for the journey between Bolton and Salford Crescent, I therefore had no opportunity to purchase a ticket extension. (Salford Crescent is the next stop after Bolton) The case is further complicated by the fact that I did not have the return portion of my ticket as I left it in the machine at Clitheroe as I was in a rush to get on the train. The ticket does however have my card details on it, which I can prove belong to me. It is however possible that the Revenue Protection Officer believed that I'd luckily managed to find a ticket on the train and come up with the "changed my mind" situation as a cover story. My question is... Have I broken a law and should I just pay the fine?