24 Whatever else might be said against the first ground advanced on behalf of Mr Blair, I am satisfied that it should be rejected because the prosecution did not fail to prove all elements of the charge. It was common ground that the offence charged was that of refusing to comply with a requirement to accompany a member of the police force to a police station for the purpose of furnishing a sample of breath for analysis, contrary to ss.49(1)(e) and 55(1) of the Road Safety Act 1986. It is established that proof of the "requirement" under that section does not require proof of a formal demand in relation to each element.[5] It is sufficient if a demand or requirement is made in substance and in comprehensible terms. Indeed, Mr Billings did not contend to the contrary[6] - his contention was that the charge as framed contained an element which was not proved. However, the element to which he referred was not one which was necessary to proof of the charge and simply arose from what I would regard as an inelegant drafting of the charge. The language used in the charge did not turn it into a different charge. There was surplus verbiage in the charge and it is not suggested that this was in any way misleading or prejudicial to the defence. Instead of the charge alleging that a requirement was made for the defendant to accompany a member of the police force to the police station for the purpose of furnishing a sample of breath for analysis, the charge alleged that the defendant was required to furnish a sample of breath for analysis [etc] and for that purpose such requirement was made. It was not a necessary part of the charge, nor was there any reason to think that it was so understood, that the member of the police force should have required the defendant to furnish a sample of breath for analysis at the time of requiring the defendant to accompany him to a police station.