But I've been curious about this thread - some of the quite extraordinary posts (incl. those from Hellfire & Express Line) and some of the forum's more 'usual points of view' posters (incl. island & 34d) seem to have been testing the basis for a successful Prosecution in this matter unlike ever before;
Interesting question. I'll try and answer it as succinctly as I can.
Any posts I have put on this thread have been specifically in response to the situation described by the OP. I have not been commenting on the overall question of fare evasion or Byelaw 18. Like everyone else who has commented, I have had to accept the version of events put forward by the OP for the purpose of this discussion in the absence of any other evidence.
I appreciate there are members of this forum who have a far greater knowledge of the complexities of railway byelaws than I do and I can understand that some of those people, who work with this day in and day out might feel a bit miffed when they think a rank amateur is posting opinions on the subject.
None of us are required to list our particular areas of expertise when posting, neither would I want people to have to do so. However, in response to a PM on the subject I have said that I do have experience of prosecuting in magistrates courts so I am not entirely ignorant of the subject. I also served for many years as a Special Constable (not to be confused with PCSOs) which means I have direct experience of the process of arrest, PACE, witness statements and court appearances.
My initial post on this thread came after some members seemed to be advising the OP to send money to Northern in a bid to fend off a possible prosecution. I did point out that a) they were just asking for a response at this stage and b) that the threat that, if the matter went to court, the OP would be liable for £150 in costs was completely empty.
Very few people have the inclination, time and, in most cases money to employ professional legal help. So TOCs can usually rely on the fact that, even if their allegation is not 100% watertight, it is unlikely to be challenged by a lawyer in court. This is often because the penalties imposed are less than the cost of the lawyer.
When you are working in any sort of job that involves upholding rules and regulations, whether statute law or railway bylaws, some people do tend to develop a black and white sort of mentality. I was guilty of that myself on many occasions. In many, if not most allegations under Byelaw 18 or fare evasion I would guess that things are black and white and it is pretty obvious an offence has been committed. I have no problem with crack downs on people who don't pay their fare. That benefits all honest fare paying passengers.
However, it would be foolish to deny that there are a minority of such cases that might be an exception to the rule and I don't think anyone suggesting this on this forum should be castigated for it. By all means, let's have a debate. But the response from one or two posters seems to imply that anyone taking a contrary viewpoint does not know what they are talking about.
I have tried to point out, things that seem cut and dried when you walk into a magistrates court as a prosecutor occasionally unravel in ways you don't expect. One or two people have said they don't believe private prosecutors are subject to the Code of Conduct followed by the CPS. That may be so although I don't know if that has ever been tested. As someone rightly pointed out, magistrates have no power under statute to question the merit of a prosecution. However, they are perfectly capable of making their views known either by coming up with a Not Guilty verdict or, as is more usual, imposing a minute fine and awarding minimal costs or no costs at all.
It is one of the great strengths of the criminal justice system that courts don't necessarily have to see things in black and white and can take account of all sorts of circumstances outside the strict content of the prosecution case.
I really hope the OP comes back to us with the progress of the case. If he can produce the evidence that he did buy and pay for the return ticket, will Northern push it to court and, if they do, what was the result?
Sorry this is a bit long. None of what I have written should be implied as any criticism of other posters who may not agree with me. I value each and every single posting on these forums and have learned a great deal since I first stumbled across them. May healthy debate continue.