[2003] EWCA Crim 1543 [2003] EWCA Crim 1543

Where a defendant sought to rely on s.139(4) Criminal Justice Act 1988 as a defence to a charge of having a knife with him in a public place, the fact finding tribunal should be left free to consider whether in the circumstances the defendant had shown on the balance of probabilities, that he had a good reason for having the article with him in a public place. If forgetfulness was relied upon, it did need to be said that alone it could not constitute a good reason, but otherwise no legal direction was required.