I was travelling from London Liverpool Street to Stansted airport on a ticket I bought using the 16-25 Railcard discount. When I got to Stansted I was stopped at a ticket check and the guys there asked to see my railcard, which I took out of my wallet only to realise it had expired. Now, this was an honest mistake on my part, as this was a 3-year railcard and I was so used to having it I hadn't checked its expiration date in a while (I also hadn't been asked for it in ages). Anyway, I would have been ready to admit I made a mistake and pay whatever they asked for, as a penalty fare, but instead they demanded that I show them ID and give them a lot of details like my address, how long I'd been living there for, what I do, etc. The guy told me he'd have to ask me some questions, and started by saying he needed me to confirm that I understand that I'm not under arrest etc. which I did (I assume he was interviewing me under caution). As I was there to catch a flight, I didn't want to make things worse, so tried to be as cooperative as possible, and explain the situation. Yes, it seemed like my railcard had expired, but I didn't realise that was the case and no, I did not intentionally try to get away with not paying the full price. He asked me if I had the means to pay the full price of the ticket and I said yes, and assumed he would ask me to pay it plus a fine, so went to get my card, but he said I didn't have to pay anything, but would instead get a letter through the post instead. He also said that since it was a first-time offence, it wouldn't get too bad.
At the time I assumed this would all sort itself out, I'd get a letter and have to pay a fine and that would be it. But now that I've looked into what the consequences of being interviewed under caution can be, I am worried about the possibility of prosecution and something like this going on my record. My question is, what are the chances this will go beyond me having to pay a fine? And how could I have handled the situation better, once I realised my railcard was expired?
At the time I assumed this would all sort itself out, I'd get a letter and have to pay a fine and that would be it. But now that I've looked into what the consequences of being interviewed under caution can be, I am worried about the possibility of prosecution and something like this going on my record. My question is, what are the chances this will go beyond me having to pay a fine? And how could I have handled the situation better, once I realised my railcard was expired?