“What is submitted in this case is that there is no other way in which a Crown Court can intervene. It is said that if Mrs Jordan is seeking to change her plea, then she is too late. For my part I would accept that that is so. It is said that this is not a case of an equivocal plea. As to that I am not so sure. It may be a case of an equivocal plea or it may be a case which is sui generis. But whichever it be, I am satisfied that the Crown Court had jurisdiction to inquire into this matter, and should have inquired into it. If it came to the conclusion that Mrs Jordan, when uttering the words 'guilty' was doing an act which, if she had been applying pen to paper, would have qualified for the description 'non est factum', in other words her mind was overborne by the will of another, then they could have so found and sent the case back to the magistrates.”