You see Pete, when I was in work (civil service management), I was trained as an internal investigator into internal financial fraud carried out by staff against the Department (the Benefits Agency which came within the ambit of the DSS - paying state benefits to claimants). That training covered PACE 84 and all of its attendant regulations at the time, but we were trained on a whole lot more things (that the police are not) that I will not go into here. So I KNOW how an investigation is conducted. I KNOW the whole interviewing process and gathering information process. I KNOW how to prepare a case for prosecution (preparing all the documentation that would pass ANY legal scrutiny) that would potentially lead to a successful prosecution. So don't try to school me on that particular area. If the police have seen fit to issue over 100 fines pursuant to their investigation, then the primary evidence/information is there with them. And for your information, the photograph is primary evidence; who took the photograph and why is supplementary information. Whereas the two are linked, it is the primary evidence that carries the weight, NOT who took the photograph, and why.