"And we applied the presumption that the machine was functioning correctly."
"(1) This section applies where the accused gives a defence statement under section 5 or 6 and the prosecutor complies with section 7 or purports to comply with it or fails to comply with it. (2) If the accused has at any time reasonable cause to believe that -- (a) there is prosecution material which might be reasonably expected to assist the accused's defence as disclosed by the defence statement given under section 5 or 6, and (b) the material has not been disclosed to the accused, the accused may apply to the court for an order requiring the prosecutor to disclose such material to the accused."
"It is a fundamental aspect of the right to a fair trial that criminal proceedings, including the elements of such proceedings which relate to procedure, should be adversarial and that there should be equality of arms between the prosecution and defence. The right to an adversarial trial means, in a criminal case, that both prosecution and defence must be given the opportunity to have knowledge of and comment on the observations filed and the evidence adduced by the other party .... In addition Article 6(1) requires, as indeed does English law .... that the prosecution authorities disclose to the defence all material evidence in their possession for or against the accused...."
"So far as it is possible to do so, primary legislation and subordinate legislation must be read and given effect in a way which is compatible with the Convention rights"
"Evidence is required at least to raise the realistic possibility that the device on the occasion with which the court is concerned may have malfunctioned and produced a false reading."
"Dr Rudram on behalf of the respondent stated he had been provided with a series of documents by the respondent relating to the machine at Bromley which included F11 reports and calibration certificates. He was of the opinion that there was nothing in those documents to suggest the machine in question was outside the type approval required by law or to render it unreliable and that the instrument had a self-checking programme."
"We were advised by our legal adviser: (a) that the burden was on the respondent to prove that the machine was an approved device and working correctly but that there was a rebuttable presumption in favour of the respondent that the machine was approved and working correctly. It was for the appellant to rebut that presumption on a balance of probability; (b) in respect of the application for disclosure: (i) that the respondent had complied with their statutory duty under the CPIA 1996 and we had to consider whether the unused material the subject of the application might undermine the respondent's case or may reasonably be expected to assist the appellant and if we were of the later opinion we should order the respondent to disclose the material; ...." 13. "
"(a) Were we correct in refusing the appellant's application for disclosure undersection 8 Criminal Procedure and Investigations Act 1996 given our acceptance of Dr Rudram's opinion that the machine was working correctly and was approved, even though the records the subject of the appellant's application were in the possession of the respondent and not a third party?"
"if any party to the proceedings proposes to adduce expert evidence (whether of fact or opinion) in the proceedings (otherwise than in relation to sentence) he shall as soon as practicable, unless in relation to the evidence in question he has already done so or the evidence is the subject of an application for leave to adduce such evidence in accordance withsection 41 of the Youth Justice and Criminal Evidence Act 1999 -- (i) furnish the other party or parties and the court with a statement in writing of any finding or opinion which he proposes to adduce by way of such evidence, and notify the expert of this disclosure; and (ii) where a request in writing is made to him in that behalf by any other party, provide that party also with a copy of (or if it appears to the party proposing to adduce the evidence to be more practicable, a reasonable opportunity to examine) the record of any observation, test, calculation or other procedure on which such finding or opinion is based and any document or other thing or substance in respect of which any such procedure has been carried out."