“I have no doubt that the words ‘conclusive evidence’ mean what they say; that they are to be a bar to any evidence being tendered to show that the statements and the minutes are not correct.” 18. Ms Gumbel sought to distinguish that and the other authorities, to which she helpfully referred us, by reference to the fact that in the contract cases the conclusiveness of evidence was clearly the mutual intention of the parties, and in the cases of public record there was a public interest or an interest of a third party to be considered for whom certainty in such matters is important. She submitted that in the context of a prosecution of an individual there are different considerations. She maintained that the original 6-month period for issuing proceedings should be given certainty, and that an extension of that time limit however achieved, in this instance by certification, on a basis that is not justified on the facts should be open to investigation by Magistrates. 19. Mr McGuinness, adopting the words of Simonds J in Kerr v Mottram, submitted that the sub-section means what it says, that the certificate is conclusive evidence and that if a court, whether a Magistrates' court or this court, were to look at evidence put forward as capable of unseating the certificate the word “conclusive” would have no meaning. He submitted that there were only two possible exceptions: (i) where it is plain that there has been fraud, and (ii) where the certificate is wrong or arguably wrong on its face. 20. He referred to a helpful summary of the law which is set out in volume 17 of the current edition of Halsbury’s Laws, at paragraph 28, which has a side heading: “Prime facie, sufficient and conclusive evidence”