CO/2634/2002 
Neutral Citation Number: [2003] EWHC 130 Admin
IN THE HIGH COURT OF JUSTICE 
QUEEN'S BENCH DIVISION  
DIVISIONAL COURT 
Royal Courts of Justice 
Strand
London WC2 

Wednesday, 22nd January 2003
B E F O R E:

LORD JUSTICE CLARKE 

MR JUSTICE JACK 
 
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GRANT
(CLAIMANT)

-v- 

DIRECTOR OF PUBLIC PROSECUTIONS
(DEFENDANT) 
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Computer-Aided Transcript of the Stenograph Notes of 
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MR N LEY (instructed by Linn & Associates, Harwich) appeared on behalf of the CLAIMANT
MR J CAUDLE (instructed by CPS Essex, Chelmsford) appeared on behalf of the DEFENDANT
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J U D G M E N T 
(As approved by the Court) 
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Crown copyright©
Wednesday, 22nd January 2002 
	LORD JUSTICE CLARKE:  
Introduction 
1.	On 31 October 2001 the appellant, Steven Grant, was convicted by a District Judge sitting in the South East Essex Magistrates' Court at Southend of failing without reasonable excuse to provide a specimen of breath contrary to section 6(4) of the Road Traffic Act 1988 ("the 1988 Act") and of driving while the proportion of alcohol in his blood exceeded the prescribed limit contrary to section 5(1)(a) of the 1988 Act.  The offences occurred on 10th April 2001 at Boreham in Essex.
2.	The proportion of alcohol in the appellant's breath was 58 micrograms of alcohol in 100 millilitres of breath.  He was fined £100 and his licence was endorsed for the first offence and he was fined £600, ordered to pay £750 costs and disqualified for three years for the second offence.  By consent the period of three years was ordered to be reduced to 27 months if the appellant successfully completed a drink driving rehabilitation scheme by 31st December 2002.
3.	The appellant appealed to the Basildon Crown Court, where his appeal was heard by His Honour Judge Yelton and two justices on 24th and 25th April 2002.  The appeal was dismissed for reasons given in a written judgment read on 26th April 2002.  
4.	The appellant asked the Crown Court to state a case, which it did on 17th May 2002, although it formulated its own questions and did not ask all the questions suggested to it on behalf of the appellant.  This is therefore the appeal by way of case stated.
The case stated 
5.	The case stated appended the written judgment and posed two questions for the opinion of the High Court, which I shall consider separately.  
Question 1: Was there evidence upon which the Court could conclude that the defendant was lawfully required to provide a specimen of breath? 
6.	The Crown Court (which I shall call "the court") heard evidence from PC Lucas and Sergeant Clark of the Essex Police, from the appellant himself and from Dr Trafford, who was an expert called on his behalf.  It is convenient to refer to the court in the plural because it comprised three members and is referred to in the plural in the case.  The court expressly held that the police officers were wholly reliable and honest witnesses on whose evidence they could rely, whereas the appellant was not a witness whose evidence they could accept save when corroborated by the testimony of others.  They took the view that the appellant was not telling the truth about many material facts.
7.	The facts found in the case which are relevant to question 1 are these:
"(A) On 10th April 2001 at about 2320 the appellant was followed and then stopped by PC Lucas on the A12 near Chelmsford.  
 (B) Shortly before he got on to the A12 the appellant had been to the Plough & Sail public house on the A130 south of Chelmsford.  
 (C) The appellant says that he had had 2-3 pints of Guinness in the hour before he left the public house.  We do not believe his evidence on that point and we find that he had had more to drink than he says.  We so find both because of his general demeanour before us and because we draw that inference from his conduct as set out subsequently.
 (D) After following the appellant for about 4 miles, PC Lucas stopped him.  
 (E) PC Lucas had reasonable cause to suspect that the appellant had committed a moving traffic offence by exceeding the speed limit.  
 (F) PC Lucas required the appellant to give a specimen of breath.  The appellant said that he had had a drink within the preceding 5 minutes (which was clearly untrue) and that the officer needed to wait 20 minutes from his last drink before requiring him to give a specimen.  He said he knew his rights.  
 (G) The officer again required a specimen.  The appellant said that he was not refusing to give one.  However he did not give one.  The officer then arrested the appellant for failing to give a specimen."
8.	In subparagraphs (H) to (O) the court set out their findings of fact with regard to what happened at the police station.  In short, they found that the appellant did much to avoid having to take a breath test.  He did, however, ultimately do so with the result I have mentioned.  The court noted that according to Dr Trafford a reading of 58 micrograms of alcohol in 100 millilitres of breath was consistent with the appellant having consumed about five pints of Guinness.  The court accepted that evidence.
9.	The court recorded in paragraph 7 that Mr Ley made a number of submissions of law none of which, as they put it, was "encumbered by merit", but again, as they put it, each of which must be given proper consideration and, if correct, given due force.  
10.	Mr Ley took the same point before the court as he has done before us, namely that PC Lucas was not entitled to require the appellant to undergo a breath test because, contrary to the instructions of the manufacturers of the breathalyser, 20 minutes had not elapsed from the time of the appellant's last drink and that the officer knew that.
11.	The court referred to DPP v Carey [1970] AC 1072, to which I will return in a moment.  In paragraph 9 they again said that the appellant was clearly not telling the truth about when he had last drunk, and in paragraphs 10 and 11 they said this:
"10.  We conclude without hesitation that the officer, faced with a motorist who was clearly telling at least one lie and who was making it clear that he would take any point he could, acted both reasonably and bona fide in requiring the test.  Put another way, in the context of this particular case the officer had no reasonable cause to suspect the consumption of alcohol within the preceding 20 minutes.  
11.  In those circumstances the request for a breath test was valid and the appellant was properly arrested."
12.	Mr Ley submits that it was unlawful for PC Lucas to require the appellant to take a breath test at the roadside when he did.  His submissions may be summarised as follows:
"1.  The manufacturers' instructions say that a breath test should not be administered within 20 minutes of the last drink.  
2.  In DPP v Carey Viscount Dilhorne said (p1084H) that if a police officer has reason to suppose the suspect has consumed alcohol within the last 20 minutes, he must wait until 20 minutes has elapsed after the last drink before administering the breath test.  If he does not know and has no reason to suppose such consumption, he need not wait the 20 minutes.  
3.  Here the Appellant left a public house shortly before joining the A12.  PC Lucas followed him for 4 miles.  When required to take a breath test the appellant said that he had finished his drink within the preceding 5 minutes - which the court found was untrue.  The court found that if an officer had been faced with a motorist who clearly lied and who was taking any point, then the policeman had acted reasonably and had no cause to suspect alcohol consumption within the last 20 minutes.  
4.  The appellant told PC Lucas that he had drank alcohol 5 minutes ago.  PC Lucas still said he must take the breath test forthwith.  What the appellant did after that is irrelevant.  The requirement for an immediate test had been made.  The officer never said why he had not accepted the defendant's account of when his last drink was.  
5.  The Case sets out no evidence on which the officer could have had reasonable grounds for disbelieving the appellant's account of when his last drink was...  
6.  Thus there is no evidence on which the court could have held that PC Lucas could have suspected he had been lied to by the Appellant...  
7.  ... No reason was given by PC Lucas (a) why he did not ask the Appellant when his last drink was before requiring an immediate breath test and (b) why he did not wait a further 15 minutes before requiring a breath test, when the appellant told him the answer to the question he never asked about when the appellant had finished drinking.  
8.  It was Wednesbury unreasonable for the Court to have held that PC Lucas had good reason not to wait before administering the breath test.  PC Lucas gave no reason and it is not the task of the criminal court to make one up.  Also the court failed to consider if there was any significance in (1) PC Lucas not giving any justification when the last drink was and (2) why prosecuting counsel did not ask PC Lucas why he did not wait 15 minutes in view of what the appellant had told him.  The only logical answer to (2) must be that the prosecutor knew the answer to the be unfavourable to his case."
13.	It may be noted that an application was made to this court for a direction that the court should state further facts, including the speed at which the appellant was driving on the A12 and the time for which PC Lucas followed him.  That application was refused by Jackson J on the ground that further facts were not necessary in order to enable the court to answer the questions posed.
14.	Section 6 of the 1988 Act provides so far as relevant:
"(1) Where a constable in uniform has reasonable cause to suspect -
 (a) that a person driving or attempting to drive or in charge of a motor vehicle on a road or other public place has alcohol in his body or has committed a traffic offence whilst the vehicle was in motion ... 
he may, subject to section 9 of this Act, require him to provide a specimen of breath for a breath test."
No-one suggests that section 9 of the Act is relevant.
15.	Moreover, on the court's findings of fact there is no doubt that PC Lucas had reasonable cause to suspect both that the appellant was driving with alcohol in his body and that he had committed a moving traffic offence, namely speeding.  
16.	It follows that on the plain words of the section the officer was entitled to require the appellant to provide him with a specimen of breath for a breath test.  However, Mr Ley relies on the decision and reasoning of the House of Lords in DPP v Carey [1970] AC 1072, and specifically upon the opinion expressed by Viscount Dilhorne at page 1084H to 1085A and Lord Diplock at page 1095C to D.  
17.	In the 20th edition of Wilkinson's Road Traffic Offences at paragraph 4.84 the editor summarised the decision in DPP v Carey as follows:
"(1) The manufacturer's instructions supplied with the Alcotest test formed no part of the device as approved by the Home Secretary.  
 (2) The only manufacturer's instructions which necessarily had to be complied with were those as to the assembly of the device.  
 (3) Provided there was a bona fide use of the device by the constable subsequent proof of failure to comply with the other instructions would not invalidate the breath test, and in particular: 
 (a) As to the instructions relating to recent consumption of alcohol, i.e. 20 minutes should elapse between consumption of alcohol and the test: if the constable had no knowledge of or reasonable cause to suspect the consumption of alcohol within 20 minutes preceding the test (if he had he should wait) or recent smoking it was a valid test even if the motorist had consumed alcohol within 20 minutes of the test.  Moreover a police officer had no duty to inquire when a motorist last consumed alcohol.  
 (b) As to the instructions relating to inflating the bag ...
 (4) (Per Lord Diplock) the only relevance of non-compliance with any of the instructions for the use of the Alcotest (other than those relating to its assembly) was that it might be evidence from which the mala fides of the constable could be inferred."
18.	It seems to me that DPP v Carey is indeed authority for those propositions, and I did not understand either counsel to submit to the contrary.
19.	The question here is whether PC Lucas acted bona fide in requiring the appellant to take the breath test when he did.  In particular, did he have reasonable cause to suspect that the appellant had been drinking in the 20 minutes before he was required to take the test? 
20.	The court addressed those very questions in paragraph 10, which I have already quoted, but which it is convenient to set out again:
"We conclude without hesitation that the officer, faced with a motorist who was clearly telling at least one lie and who was making it clear that he would take any point he could, acted both reasonably and bona fide in requiring the test.  Put another way, in the context of this particular case the officer had no reasonable cause to suspect the consumption of alcohol within the preceding 20 minutes."
Mr Ley, properly concedes that the court correctly directed themselves in law in that paragraph in the light of the decision of the House of Lords in DPP v Carey.  
21.	The conclusion there expressed was reached in the context of their earlier conclusion that the appellant was not telling the truth about when he had last taken drink, vis that he was not telling the truth when he said that he had had a drink within the previous five minutes.  
22.	The court was, to my mind, entitled to hold that that was a clear lie, by which they must have meant clear both to the officer and to the court.  There was no need for the officer to be asked further questions, although no doubt counsel for either side could have asked the officer further questions if he or she had wished.  The officer had just followed the appellant for four miles.  There was no suggestion that the appellant had consumed alcohol while driving the car.  In these circumstances the court were entitled to conclude that the appellant was clearly lying when he said that he had had a drink within the previous five minutes, especially when the appellant said to the officer that he knew his rights and that the officer needed to wait 20 minutes from his last drink.  Once that was held to be a lie, there was no other basis on which the officer could be held to have reasonable cause to suspect that the appellant had consumed alcohol within the preceding 20 minutes.  
23.	In these circumstances, I would reject Mr Ley's submission that there was no evidence on which the officer could have reasonable grounds for disbelieving the appellant.  The officer was not obliged to ask the appellant when he had had his last drink.  I, for my part, would draw no inference from the failure of counsel for the prosecution to ask further questions.  There was, to my mind, nothing irrational in the conclusions of fact reached by the court.  They asked the correct questions and arrived at conclusions of fact which cannot be challenged as wrong in law.  
24.	I would therefore answer the first question, "Yes".
Question 2: Was the Court correct to follow the guidance given in DPP v Brown and DPP v Texeira [2001] EWHC 931 to the effect that evidence should not be put before the Court as to whether the ECIR instrument should not have received the approval of the Secretary of State and/or that approval should have been revoked and/or that it had been modified? 
25.	Before the court Mr Ley challenged the approval of the intoximeter device known as ECIR for three reasons: (1), it was Wednesbury unreasonable for the Secretary of State to approve it in the first place; (2), it was Wednesbury unreasonable for the Secretary of State not to have revoked its approval; and, (3), the alterations to it had caused it to lose its seal of approval.
26.	The court rejected all three submissions.  Mr Ley in effect renews those submissions in this court.  I will briefly consider, first, submissions (1) and )2) together before turning separately to submission (3).
(1) The initial approval and (2) the revocation of approval 
27.	It is common ground that the device was approved by the Secretary of State.  As appears from paragraph 39 of the judgment of Cresswell J in DPP v Brown, DPP v Texeira, unreported 16th November 2001, the relevant approval was contained in the Breath Analysis Devices (No 2) Approval Regulations 1998 dated 25th February 1998, made pursuant to powers conferred by section 7(1)(a) of the 1988 Act.  In that case this court, Pill LJ and Cresswell J, underlined the general principle that it is not open to defendants to assert that the intoximeter EC/IR should not have received the approval of the Secretary of State: see, for example, per Cresswell J at 42 and 48(1).  
28.	In paragraph 42 Cresswell J stressed the view expressed by Robert Goff LJ in R v Skegness Magistrates' Court ex parte Cardy [1985] RTR 49 at 61 that representations that the device should not have been approved or that the Secretary of State should have withdrawn approval in respect of the device should be addressed to the Secretary of State.  Equally, Pill LJ said at paragraph 52:
"The device was of a type approved by the Secretary of State under section 7(1)(a) of the Road Traffic Act.  The fact that a particular device of an approved type later fails a test which is similar to one of the tests required as part of the test scheme (C11) used during type approval procedures does not deprive the device of that approval.  In R v Skegness Magistrates' Court ... Goff LJ, giving the judgment of the Divisional Court stated, at p 61H, that while approval subsisted, it is 'wholly immaterial to mount a challenge to the general reliability of these approved devices in individual prosecutions brought under the Act'."
29.	In paragraph 48(1) Cresswell J, with whom Pill LJ expressed his agreement, said this:
"Magistrates are only concerned with the particular intoximeter device used (for example in Mr Brown's case EC/IR instrument no 01384).  It is thus no part of their function to consider whether the intoximeter EC/IR should have received the approval of the Secretary of State."
30.	In the instant case, the court expressed their conclusions thus in paragraph 15 of their judgment:
"Mr Ley wished to argue that the ECIR instrument used should not have received the approval of the Secretary of State and/or that approval should have been revoked.  Following the decision in Brown and Texeira, particularly at para 48(1), he was not permitted by the court to call evidence on that matter.  He said that the Divisional Court had acted per incuriam.  It seems to us that we must follow the recent Divisional Court decision, but in any event the argument that it was flawed by the reasoning of the House of Lords in Boddington v British Transport Police [1999] AC 143 seems to the court to be misconceived."
31.	In this appeal Mr Ley again seeks to rely upon Boddington v British Transport Police [1999] 2 AC 143.  However, before considering his submissions I should refer to a further decision of this court in DPP v Memery, unreported, 4th July 2002, in which Gibbs J gave the leading judgment with which Rose LJ agreed.  In that case the Crown Court had concluded that the intoximeter EC/IR was not a validly approved device or if it was that it was unreasonable for the Secretary of State to have approved it since it was a device which detected mouth alcohol, i.e. was liable to give a false reading by failing to distinguish mouth alcohol from the alcohol in the exhaled alreolar (deep lung) breath: see paragraph 17.  
32.	In paragraphs 43 to 47 Gibbs J summarised the procedure adopted by the Secretary of State for approving the type of device and the procedure laid down for subsequently checking the device.  In paragraphs 48 to 56 he considered the reliability of the device in the event of mouth alcohol being present, but also the facts relating to mouth alcohol as found by the Crown Court in that case.  Gibbs J then considered in paragraphs 58 to 67 the Skegness Magistrates' Court case and DPP v Brown and DPP v Texeira, to which I have referred, and a Scottish case, namely Brown v Procurator Fiscal, unreported 8 March 2002.  In paragraph 67 Gibbs J observed that the factual strand common to all those cases was that in none of them, on the evidence, was there any causal connection between any defect in the device's abilities to detect mouth alcohol and the requirement of the reading presented in evidence.
33.	In Memery the respondent was represented by Mr Ley, as the appellant is here.  Mr Ley took the same point based upon Boddington as he seeks to take today.  The point can be illustrated by one sentence from the speech of Lord Irvine LC at page 162G, where he said:
"In my judgment only the clear language of a statute could take away the right of a defendant in criminal proceedings to challenge the lawfulness of a by-law or administrative decision where his prosecution is premised on its validity."
Mr Ley submitted and submits that the same principle must apply to a prosecution premised on the validity of an approval of a device such as an intoximeter.
34.	Mr Ley also relies upon other passages in the same speech (see 152F and 161C) which are quoted by Gibbs J in paragraph 69 and 70 in Memery.  See also Lord Steyn at page 173F quoted by Gibbs J at paragraph 72.  
35.	In Memery this court expressly rejected Mr Ley's submissions relying on Boddington, indicating that Brown and Texeira was wrongly decided because it did not have regard to Boddington or the principle contained in it.  Gibbs J described Mr Ley's submissions thus in paragraph 73:
"It is submitted that if it had had regard to that decision, it [that is the court in Brown and Texeira] would have declared itself ready to permit the appellants to rely on the public law challenge to the Secretary of State's purported approval of the device, and had it done so, would have found that the Secretary of State's approval of the device was invalid or unlawful.  The same argument must by implication lie to the Scottish case."
36.	This court, however, held that the approach in both Brown and Texeira and the Scottish case of Brown v Procurator Fiscal was consistent with the principles in Boddington.  Gibbs J expressed his conclusions in that regard in this way at paragraph 75 and 76:
"75.  What the court effectively was doing in each of those cases was considering comprehensively in the broad legislative context whether it could have been intended by Parliament that the defendants in those cases should be able to challenge the approval of the device in question.  In each of the cases the answer was no.  
76.  I have also given attention in this case, in the broad legislative context, to whether the Crown Court was permitted to rule on the Secretary of State's approval of the device.  In my opinion, the answer in the present case should also be no.  The reasons for this view are apparent from the passages already cited and are principally as follows: 
 (a) The point at issue is one of admissibility of the relevant evidence, ie of the intoximeter reading.
 (b) The reliability of the reading in a particular case is always open to challenge by admissible evidence and in the event of challenge it is for the prosecution to approve its actual reliability. 
 (c) In the light of the legislative context when properly analysed, Parliament, in my view, cannot have intended every defendant to have the right to challenge the lawfulness of the Secretary of State's approval of the evidential device.
 (d) In any event, in the context of the reliability of the machine and the provisions of the statutory scheme when looked at as a whole, including all the procedural safeguards relating to the possibility of inaccurate readings due to mouth alcohol, the approval of the device cannot be described as irrational.
 (e) In the present case, the ability of the device to detect mouth alcohol was wholly irrelevant to the reliability of the evidence it provided against the respondent.  Its accuracy in that context was not doubted by any of the experts."
37.	As I have already indicated, Mr Ley submits that that reasoning is wrong because it failed to follow the approach in Boddington, namely that Parliament must use clear words to exclude a defence of this kind, whereas in this context there are no words of any kind, let alone clear words.
38.	For my part, I would not accept that submission for two reasons.  The first is that this court has only very recently decided the very point raised by Mr Ley and in my opinion we should, as a matter of principle, follow it.  There are circumstances in which a Divisional Court will not follow an earlier decision of a Divisional Court.  A Divisional Court exercising its appellate jurisdiction in criminal cases will adopt the same approach as the Criminal Division of the Court of Appeal to its previous decisions: see R v Manchester Coroner ex parte Tal [1985] 1 QB 67 per Robert Goff LJ giving the judgment of the court at page 79C.
39.	The relevant principles applied by the Court of Appeal Criminal Division are stated in R v Taylor [1952] 2 KB 368 per Lord Goddard CJ at page 371 and R v Gould [1968] 2 QB 65 at pages 68-69 per Lord Diplock.  The Court of Appeal Criminal Division will only depart from an earlier decision where in that earlier case the law has been misapplied or misunderstood.  That does not, to my mind, mean that it is appropriate to depart from a decision recently arrived at after full argument of the same point save perhaps in exceptional circumstances.  To allow Mr Ley to argue the very same point now which he lost only six months ago before another Divisional Court when nothing has changed in the meantime would make the business of the court almost impossible to conduct.
40.	The second reason is that I agree with the reasons given in Memery as set out above.  To my mind, the question is essentially one of construction of the relevant statute in its statutory context, and I would reject Mr Ley's submissions in substance essentially for the same reasons as Gibbs J did in Memery.
(3) Alteration of the device 
41.	Mr Ley submitted to the Crown Court that the particular intoximeter had been altered or modified so that it was no longer an approved device.  In this regard the court said this in paragraph 16:
"We permitted Mr Ley to ask questions of Dr Trafford designed to show that the devices in question had been modified from the original specification.  However, we take the view that even had Dr Trafford's evidence established that there had been such a modification, which in our view it did not, but rather was founded upon some speculation and second hand information, that would not be a matter into which we should enquire, following the analogy of Brown and Texeira: it would not be a matter for this court."
42.	Mr Ley's submissions in this regard may be summarised as follows: (1) Young v Flint [1987] RTR 300 shows that alterations to an intoximeter can be so fundamental that they can cause an approved device to lose its approval or at least to lead to the conclusion that the device is no longer an example of the device as approved; (2) the court was wrong to hold that this was an issue which could not be raised; (3) because of that ruling the court did not have to consider the evidence on the point; (4) in any event (a) the burden was not on the appellant to prove there to have been the relevant modifications, he merely had to raise the issue, it was then on the DPP to approve either, one, that there were no modifications or, two, that any such modifications did not effect the approval (see Woolmington v DPP [1936] AC per Lord Sankey LC), (b) the situation is analogous to where a motorist challenges the accuracy of the intoximeter, namely that there is only an evidential burden on him (see O'Sullivan v DPP, unreported 27th March 2000), (c) if a court is going to reject expert evidence it must give proper reasons (see R v Harrow Crown Court ex parte Dave [1994] 99 Cr App R 114 especially per Pill LJ giving the judgment of this court at pages 121-122 and English v Emery Reimbold & Strick Ltd [2002] EWCA Civ 605, [2002] 1 WLR 2409 especially per Lord Phillips MR giving the judgment of the court at paragraph 20, (d) an expert is permitted to give second hand information (see R v Somers [1963] 3 All ER 808); (5) the court did not apply the burden of proof correctly and did not give sufficient reasons.
43.	As I understand it, Mr Caudle accepts, at any rate for the purposes of this appeal, Mr Ley's submissions (1), (2) and (4)(a) to (d), although he draws attention to the way in which Pill J expressed the principle in ex parte Dave at pages 121-122 as follows:
"So in our judgment the weight of authority is now in favour of the conclusion that when the Crown Court sits in an appellate capacity it must give reasons for its decision.  The custom has become or ought to have become universal ... of course as Griffiths LJ emphasised in the later Engil Trust case [1985] 3 All ER 199, the reasons need not be elaborate but they must show the parties and if need be this court the basis on which the Crown Court has acted."
I do not read paragraph 20 in English v Emery Reimbold as putting the point any differently.
44.	In the light of Mr Caudle's approach, I therefore assume for present purposes, one, that alterations to a device can be so fundamental that they cause the device to be such that it is not longer the device approved and, two, that once the issue is sufficiently raised the burden is on the Crown to prove beyond reasonable doubt that the device is an approved device.  However, I would not accept Mr Ley's submissions that the court did not consider the relevant evidence, which was that of Dr Trafford, and reach a conclusion about it even though the court also said in paragraph 16 that if they had formed a different view this was a matter into which they should not require following, as they put it, the analogy of Brown and Texeira.
45.	For my part, I would not readily accept that Brown and Texeira has that effect.  To that extent I would accept Mr Ley's submission, at any rate as presently advised.  However, as the court says expressly in paragraph 16, they permitted Mr Ley to ask appropriate questions of Dr Trafford designed to show that the devices had been modified, but they plainly rejected Dr Trafford's evidence that there had been such a modification.  They took the view that Dr Trafford's evidence was founded upon some speculation and second hand information.  We were told by Mr Ley that he invited Jackson J to direct the court to give further reasons, but he declined because he took the view that it was not necessary to do so in order to resolve the issues raised which the case.  In my view, Jackson J was entitled to take that view.
46.	It is plain that the court took the view that Dr Trafford's evidence was to a significant extent founded upon speculation.  That was the principal basis upon which they rejected it.  The court was entitled to reject it on that basis and, although the court could certainly have given more reasons, and I would encourage courts in the future to give somewhat more extensive reasons, I do not think that either party can have been in any doubt that the court's view was that Dr Trafford's evidence was based on speculation.  It seems to me that that was a sufficient reason and one which the court was entitled to reach as a matter of fact.
47.	Having reached that conclusion, I see no reason to conclude that the court was not sure that the device used was indeed an approved device.  I would therefore reject this submission of Mr Ley.
48.	In all the circumstances, I would answer the second question, if it is posed without the words "and/or that it had been modified", "yes".
49.	As to the point raised by the question with the words "and/or it had been modified", I would not answer the question, "yes", but I would hold that having regard to the conclusions of fact reached by the court there is no basis upon which this appeal could be allowed or the conviction quashed.  
50.	I would therefore dismiss the appeal and uphold the conviction.  
51.	MR JUSTICE JACK:  I agree.
52.	MR CAUDLE:  My Lord, I do have an application for costs in the sum of £750.
53.	LORD JUSTICE CLARKE:  I should not think that you can resist that, Mr Ley. 
54.	MR LEY:  My client has the benefit of a legal aid certificate, my Lord, so I would ask for the usual football pools order.
55.	LORD JUSTICE CLARKE:  I think that must follow.
56.	MR CAUDLE:  I was not aware of that, he had not been up to now.
57.	LORD JUSTICE CLARKE:  Then we will make the order in its usual form.  Your client will have to provide the court with the original certificate.
58.	MR LEY:  I have a photocopy, I understand my instructing solicitor has the original.
59.	LORD JUSTICE CLARKE:  I understand the original is required.  
60.	Thank you very much.  It is, as ever, a great interest this area of the law, Mr Ley.