Darker and Others and Chief Constable of The West Midlands Police [2000] UKHL 44

House of Lords
Between
Darker and Others and Chief Constable of The West Midlands PoliceAppellant
Before
Lord Hope of CraigheadLord Mackay of ClashfernLord Cooke of ThorndonLord ClydeLord HuttonDate 27 July 2000

LORD CLYDE

My Lords,When a police officer comes to court to give evidence he has the benefit of an absolute immunity. This immunity, which is regarded as necessary in the interests of the administration of justice and is granted to him as a matter of public policy, is shared by all witnesses in regard to the evidence which they give when they are in the witness box. It extends to anything said or done by them in the ordinary course of any proceeding in a court of justice. The same immunity is given to the parties, their advocates, jurors and the judge. They are all immune from any action that may be brought against them on the ground that things said or done by them in the ordinary course of the proceedings were said or done falsely and maliciously and without reasonable and probable cause: Dawkins v. Lord Rokeby (1873) L.R. 8 Q.B. 255, 264 per Kelly C.B. The immunity extends also to claims made against witnesses for things said or done by them in the ordinary course of such proceedings on the ground of negligence.No challenge is made in this case to what may conveniently be described as the core immunity. It is not suggested that police officers who participate in the proceedings as witnesses should no longer have the benefit of it in regard to things said or done by them while they are actually in the witness box. The question that has been raised relates to the further extent of the immunity. Where are the boundaries to be drawn? It arises because there is another factor that must always be balanced against the public interest in matters relating to the administration of justice. It is the principle that a wrong ought not to be without a remedy. The immunity is a derogation from a person's right of access to the court which requires to be justified.The background to the case has been explained by my noble and learned friend Lord Hutton, whose speech I have had the advantage of reading in draft and with which I agree. The appellants claim damages against the police for conspiracy to injure and misfeasance in a public office. If their claims related only to things said or done by the police officers while they were in the witness box they would be excluded by the core immunity. It was on the ground of the immunity that the claims were struck out by Maurice Kay J., whose judgment was upheld by the Court of Appeal (Millett L.J., Auld L.J. and Schiemann L.J.). But the police officers to whose conduct the claims relate did not enter the witness box. The trial and all further proceedings on the indictment were stayed as an abuse of process. The claims are based on allegations about things done by the police while they were engaged in the investigation of crime and during the process of preparing the case for the trial. If the allegations are true, the police would, but for the immunity, be liable to the appellants in damages.The first step that must be taken in order to identify the extent of the immunity is to examine the grounds of public policy which explain the basis for the immunity. In Silcott v. Commissioner of Police for the Metropolis [1996] 8 Admin LR 633 , 637C-E Simon Brown L.J. said:The second of these two policy reasons relates only to the core immunity, as it is limited in its application to things said or done in court. Lord Wilberforce made this clear when he said at p. 480 that the immunity which he was considering was that of witnesses "in respect of evidence given in court" and when he referred to the fact that the trial process, in the subjection of witnesses to cross-examination and confrontation with other evidence, contains some safeguard against careless, malicious or untruthful evidence. The appellants' allegations relate to things done outside the court room, so it is the first policy reason only which is relevant to this case. In the Court of Appeal Auld L.J. said:As Lord Hoffmann put it in Taylor v. Serious Fraud Office [1999] 2 AC 177 , 208E, the absolute immunity rule:It is clear that, if that objective is to be achieved, it would not be satisfactory to confine the immunity to evidence given by witnesses while they are actually in the witness box. Witnesses seldom enter the witness box without having been interviewed beforehand by a solicitor or an investigating police officer. As the Earl of Halsbury L.C. said in Watson v. McEwan [1905] AC 480 , 487, the public policy which renders the protection of witnesses necessary for the administration of justice must as a necessary consequence extend to the preliminary examination of witnesses to find out what they can prove. In Evans v. London Hospital Medical College and Others [1981] 1 W.L.R. 184 it was held that the immunity was available to potential witnesses in criminal proceedings at a time when such proceedings were merely in contemplation but had not yet commenced. The same view was taken in the case of an expert's report prepared in the knowledge that, if there was evidence to bring proceedings for child abuse, proceedings would be brought and the report would form part of the evidence in those proceedings: X (Minors) v. Bedfordshire County Council [1995] 2 AC 633 , per Lord Browne-Wilkinson at p. 755G. In Taylor v. Serious Fraud Office [1999] 2 AC 177 it was held that the immunity extended also to statements made out of court which could fairly be said to be part of the process of investigating a crime or a possible crime with a view to prosecution. In the course of my speech at p. 218G I referred in this connection to investigators and the prosecuting officials with whom they are required to communicate. The protection of the immunity is available even if the trial does not take place: Stanton v. Callaghan [2000] 1 Q.B. 75.A similar extension of the immunity to statements given by police officers who later gave evidence or were potential witnesses at the trial can be justified on public policy grounds. Here again it is normal for police witnesses to undergo a preliminary examination during the preparatory stage in order to find out what they can prove. Prosecutors and defence solicitors require this information in order that they may take an informed decision as to which witnesses to call and whether they should be cross-examined and, if so, on what grounds. The trial process would be inhibited if police witnesses and potential police witnesses were to be exposed to action for things said or done by them during the preparatory stage when they are undergoing this preliminary examination. The same approach can properly be taken to the preparation of technical reports by police officers with expertise in such matters as ballistics, explosives or fingerprinting. As in the case of other expert witnesses, it would unduly inhibit the trial process if they did not have the protection of the immunity in regard to the content of the reports which they had prepared with a view to giving evidence should the matter come to trial.But there is a crucial difference between statements made by police officers prior to giving evidence and things said or done in the ordinary course of preparing reports for use in evidence, where the functions that they are performing can be said to be those of witnesses or potential witnesses as they are related directly to what requires to be done to enable them to give evidence, and their conduct at earlier stages in the case when they are performing their functions as enforcers of the law or as investigators. The actions which the police take as law enforcers or as investigators may, of course, become the subject of evidence. It may then be necessary for the police officers concerned to assume the functions of witnesses at the trial to describe what they did or what they heard or what they saw. But there is no good reason on grounds of public policy to extend the immunity which attaches to things said or done by them when they are describing these matters to things done by them which cannot fairly be said to form part of their participation in the judicial process as witnesses. The purpose of the immunity is to protect witnesses against claims made against them for something said or done in the course of giving or preparing to give evidence. It is not to be used to shield the police from action for things done while they are acting as law enforcers or investigators. The rule of law requires that the police must act within the law when they are enforcing the law or are investigating allegations of criminal conduct. It also requires that those who complain that the police have acted outside the law in the performance of those functions, as in cases alleging unlawful arrest or trespass, should have access to a court for a remedy.In Silcott v. Commissioner of the Police for the Metropolis (1996) 8 AdminLR 633 , 640C-D Simon Brown L.J. said:I would hold, with respect, that Simon Brown L.J. went too far when he said that the protection of the immunity must extend to such acts to procure false evidence as the planting of a brick or drug or the fabrication of a record of interview. He overlooked the distinction which I would draw between the act itself and the evidence that may be given about the act or its consequences. This distinction rests upon the fact that acts which are calculated to create or procure false evidence or to destroy evidence have an independent existence from, and are extraneous to, the evidence that may be given as to the consequences of those acts. It is unlikely that those who have fabricated or destroyed evidence would wish to enter the witness box for the purpose of admitting to their acts of fabrication or destruction. Their acts were done with a view to the giving of evidence not about the acts themselves but about their consequences. The position is different where the allegation relates to the content of the evidence or the content of statements made with a view to giving evidence, and not to the doing of an act such as the creation or the fabrication of evidence. The police officer who is alleged to have given false evidence that he found a brick or drug in the possession of the accused or that he heard an accused made a statement or a remark which was incriminating is protected because the allegation relates to the content of his evidence. He is entitled to the immunity because he was speaking as a witness, if he made the statement when he was giving evidence, or was speaking as a potential witness, if he made it during his preliminary examination with a view to his giving evidence.In Evans v. London Hospital Medical College and Others [1981] 1 W.L.R. 184, 191H Drake J. said that the immunity must extend not only to the giving of evidence in court and formal statements made in preparation for the giving of evidence but also to the acts of the witness in collecting or considering material on which he may later be called to give evidence. While that decision was correct on its own facts, I would not accept for all purposes this description of the extent of the immunity. The explanation which the judge gave was that, if the immunity extends only to was not so extended, a convicted person could sue the police officers for the allegedly negligent manner in which they had investigated the crime. But I think that this tends to confuse the functions of the witness with that of the investigator. It is important also not to confuse the immunity rule which extends to witnesses with the question whether or not in particular circumstances a duty of care is owed by the police or by prosecutors: see Hill v. Chief Constable of West Yorkshire [1989] AC 53 ; Elguzouli-Daf v. Commissioner of Police of the Metropolis [1995] QB 335 . The purpose of the immunity rule is to protect the witness in respect of statements made or things done when giving or preparing to give evidence. The acts of the witness in collecting material on which he may later be called to give evidence are not protected by the immunity. The immunity extends only to the content of the evidence which the witness gives or is preparing to give based on that material. I think that Sir Richard Scott V. C. described the position correctly when he said in Bennett v. Commissioner of Police for the Metropolis (1997) 10 Admin. L.R. 245, 252D-E that the immunity extends to statements made or agreed to be made out of court "if these were clearly and directly made in relation to the proceedings in court, for example, witnesses' proofs of evidence."In the present case the allegations that have been made against the police officers are not related only to the content of evidence that they might have given if they had been called upon to give evidence at the trial. They relate, at least in part, to things done by the police during the initial stage when they were acting as investigators. I do not think that it can be asserted without hearing the evidence that these allegations fall within the boundaries of the immunity. This is a matter which should be considered in the light of the facts as they emerge at the trial. I would allow the appeal and make the order that has been proposed by my noble and learned friend Lord Hutton.

LORD MACKAY OF CLASHFERN

My Lords,I have had the advantage of reading in draft the speech to be delivered by my noble and learned friend Lord Hutton. I agree with him that this appeal should be allowed and that the order he proposes should be made.In view of the importance of the case, I state my reasons briefly. The action has been struck out by the Court of Appeal affirming the judgment of Maurice Kay J. for the reason that "the immunity rule" applied and that if that rule is to be true to the public policy reasons for it, there is no logical basis for distinguishing between making witness statements and investigation and other preparatory conduct with a view to making them.By the end of the 19th Century, after a long history, it was settled that witnesses taking part in a trial could not be sued for anything written or spoken in the course of the proceedings. In Watson v. M'Ewan [1905] AC 480 the House of Lords held that the privilege which surrounds the evidence actually given in a Court of Justice necessarily involves the same privilege in the case of making a statement to a solicitor and other persons who are engaged in the conduct of proceedings in Courts of Justice when what is intended to be stated in the court is narrated to them.In Taylor v. Serious Fraud Office [1999] 2 AC 177 this House held that the immunity extended also to out of court statements which could fairly be said to be part of the process of investigating crime with a view to prosecution. However it is vitally important to note that Lord Hoffmann with whom Lord Goff of Chieveley, Lord Hope of Craighead and Lord Hutton agreed said at 214E "The policy of the immunity is to enable people to speak freely without fear of being sued, whether successfully or not. If this object is to be achieved, the person in question must know at the time he speaks whether or not the immunity will attach". At 215C he said "As the policy of the immunity is to encourage freedom of expression, it is limited to actions in which the alleged statement constitutes the cause of action".In the present case, the summary of the plaintiffs' allegations, which we have to assume for the purpose of this striking out application are true, includes allegations of police officers knowingly instructing undercover agents to breach police instructions of operation, in particular that a police officer must not act as an agent provocateur, and that the police officers manipulated a police informer to prevent the plaintiffs having a fair trial in particular by refusing to comply with the judge's directions on pre-trial disclosure. The pleaded causes of action are that there was a conspiracy to injure the plaintiffs by use of unlawful means and that police officers committed the tort of misfeasance in a public office.The only ground on which it was claimed that this action should be struck out was that the respondent was protected by the immunity to which I have already referred. In my view there are materials in these allegations which do not depend as a cause of action on alleged statements relating to the preparation of evidence for proceedings and go beyond matters of freedom of speech either at, or, in the course of preparation for, a criminal trial. It follows that in my opinion the immunity claimed cannot apply to these allegations and consequently the action cannot be struck out.In the course of the argument before us reference was made to the judgment of Drake J. in Evans v. London Hospital Medical College (University of London) and others [1981] 1 W.L.R. 184 at p. 191 after referring to earlier authorities Drake J. said:It is clear on looking at the nature of the claim made in that case that it was based upon the report of the post mortem and analysis results which had been prepared by the individual defendants in various capacities as a result of which proceedings had been taken against the plaintiff. In so far as the defendants' conduct was alleged to be negligent this was relevant only because this negligence led to the making of the report in the terms which were the subject of the complaint. I conclude that Drake J's. decision did not extend the immunity to alleged negligent conduct not reflected in a written report or statement. In Silcott v. Commissioner of Police for the Metropolis [1996] 8 AdminLR 633 at p. 637 Simon Brown L.J. quotes from the judgment of Drake J. in Evans in such a way as to leave open the possibility that the immunity extends to conduct which is not related to the preparation of a report or statement in writing. At p. 640 Simon Brown L.J. goes on:I have found the last part of this quotation unacceptable as it seems to me to stretch the immunity beyond an immunity in respect of statements made for the purpose of court proceedings to an immunity not related to any statement made in court proceedings. For example, in the illustration where a police officer plants a brick or drug on an accused person I would find it hard to envisage that any statement is likely to be made by him to that effect and therefore an immunity which stretches so far is not based on protecting a statement to be made by the person who does the planting. The person who subsequently innocently finds the drug or brick on the accused and makes a statement that he so found the brick or drug will be protected in respect of the statement by the immunity but I see no reason to extend it to the conduct of the officer who does the planting, who has no intention whatsoever of disclosing this in any statement. In my view, this part of Simon Brown L.J.'s judgment applies the judgment of Drake J. more widely than its context in the case of Evans warrants. The essential character of the immunity as described in the passages I have quoted from Lord Hoffmann in Taylor limits the application of the immunity to conduct which can be called in question only by a founding on a statement in court or a statement which is part of the preparation of evidence for court proceedings.I should also wish to say that in applying some formulations of the immunity in the authorities as it affects judges, the decision of this House In re McC. (A Minor) [1985] A.C. 528 requires to be kept in view and particularly I should refer to the speech of Lord Bridge of Harwich at pp. 540F-541A.

LORD COOKE OF THORNDON

My Lords,"But my experience leads me to believe that Her Majesty's servants are made of sterner stuff" said Lord Reid in Dorset Yacht Co. Ltd. v. Home Office [1970] AC 1004 , 1033, rejecting an argument that public policy required immunity for the Home Office lest the risk of claims could inhibit officers from allowing Borstal boys out of the institution on training exercises. It is essentially for the same reason that I would reject the contention that immunity protects the kind of conduct alleged against police officers in the present case.An agreed summary of the allegations appears in the speech of my noble and learned friend Lord Hutton. In terms of the test proposed by Drake J. in Evans v. London Hospital Medical College [1981] 1 W.L.R. 184, 192, on which the respondent relies, it is obvious that none of the alleged conduct could fairly be said to be part of the process of investigating a crime. The fabrication of evidence, for instance, is almost the antithesis of investigation; it is creation. The argument has to be and is, however, that without immunity investigating police officers would be deterred from carrying out their duty by fear of vexatious actions. The reasoning involved is in substance that of Fry L.J. in Munster v. Lamb (1883) 11 QBD 588 , 607, in a well-known passage explaining why defamation actions cannot be brought against judges and witnesses. It is encapsulated in a statement of Simon Brown L.J. in Silcott v. Commissioner of Police for the Metropolis (1996) 8 AdminLR 633 , 640, which was cited and followed by Auld L.J. in the judgment now under appeal:Absolute immunity is in principle inconsistent with the rule of law but in a few, strictly limited, categories of cases it has to be granted for practical reasons. It is granted grudgingly, the standard formulation of the test for inclusion of a case in any of the categories being Sir Thaddeus McCarthy P.'s proposition in Rees v. Sinclair [1974] 1 N.Z.L.R. 180, 187, "The protection should not be given any wider application than is absolutely necessary in the interests of the administration of justice." Many other authorities contain language to similar effect.There is nothing new in allegations against the police of pre-trial misconduct. A common type of allegation, familiar to any judge who has had to preside frequently over criminal trials, has been of some impropriety in the obtaining of statements from an accused person. Very often these allegations are found to be false. Usually police officers confronted with such allegations in the witness box face them philosophically and firmly. They are part of the policeman's lot, a well-recognised professional hazard. I think that it would be unrealistic to suppose that the risk of such false allegations has over the years operated as a significant disincentive to the conscientious discharge of police investigatory duties. It would seem equally unrealistic to suggest that this has been due to an understanding that pre-trial investigations were immune from tort claims. Not until Silcott in 1996 had an English court articulated the law in that way. In my opinion it certainly cannot be said that protection has proved to be absolutely necessary in the interests of the administration of justice.A police officer who gives evidence or a proof of proposed evidence is entitled to the same immunity as any other witness or potential witness. And to prevent the evasion of this immunity it is necessary to rule out also allegations of conspiracy to give false evidence, as was held in Marrinan v. Vibart [1963] 1 Q.B. 528. There may be some borderline cases where it is not easy to draw the line as to the precise extent of witness immunity. The solution of these cases may be helped to some extent by bearing in mind that witness immunity is a general doctrine applying to all persons called upon to give evidence, whereas the function of official investigation is limited to the police and various other public officials. Conduct which is primarily and naturally to be seen as belonging to the investigatory function, even though it may have some ultimate link with the giving of evidence, should not be within the general protection.Many of the authorities cited in argument were concerned to uphold absolute privilege in defamation or the absence of a duty of care in negligence. It would be unsafe to convert what has been said about immunity in such cases to use in respect of the kind of conduct alleged in the present case. Thus Evans v. London Hospital Medical College did not require any consideration of the planting of evidence; it was simply a case of the bona fide but allegedly negligent preparation of evidence. Drake J.'s proposition was entirely apt for such a case, but to give it some wider influence could be dangerous. It is noteworthy that in Taylor v. Serious Fraud Office [1999] 2 AC 177 , 215, Lord Hoffmann thought that Evans might nowadays have been decided on the ground that the defendants owed the plaintiff no duty of care. That is how Evans happens to have been seen in New Zealand: South Pacific Manufacturing Co. Ltd. v. New Zealand Security Consultants and Investigations Ltd. [1992] L.R.C. (Comm.) 91, 115.Taylor's case itself was a defamation action in which the defendants were held (by a majority in your Lordships' House) entitled to absolute privilege. To cite Lord Hoffmann again (at pages 214-215):
"In my view it is necessary for the administration of justice that investigators should be able to exchange information, theories and hypotheses among themselves and to put them to other persons assisting in the inquiry without fear of being sued if such statements are disclosed in the course of the proceedings."
All the speeches dealt with the subject in similar terms. The fabrication of evidence was never mentioned. It is well understandable that the freedom of police investigators to communicate inter se and with others should be inviolate. The planting of evidence, such as the brick or drug postulated in Silcott , takes one from the field of freedom of speech into different territory. I do not think that Taylor can have been intended to be a guide in that territory. Each category of immunity requires separate consideration and justification, while each set of facts requires full examination in determining whether it can be brought within a particular category.Your Lordships have had the advantage, not enjoyed by the Court of Appeal in this case nor evidently in Silcott, of citations of American jurisprudence. Not surprisingly in this difficult field, there have been line-drawing differences; but there appears to have been general agreement on a functional test. A convenient starting point is Imbler v. Pachtman 424 U.S. 409 (1976) where the United Sates Supreme Court held by a majority that a state prosecutor who acted within the scope of his duties in initiating and pursuing a criminal prosecution and in presenting the state's case was absolutely immune from a civil suit for damages for alleged deprivations of the defendant's constitutional rights; and that the absolute immunity was applicable even where the prosecutor knowingly used perjured testimony, deliberately withheld exculpatory information, or failed to make full disclosure of all facts casting doubt on the state's testimony. It was said that these activities were intimately associated with the judicial phase of the criminal process, as distinct from the administrative or investigatory role.A case on the other side of the line, where a majority of the Supreme Court denied absolute immunity, was Buckley v. Fitzsimmons 113 S.Ct. 2606 (1993). It was held that a prosecutor's alleged misconduct when endeavouring to determine whether a bootprint at the scene of the crime had been left by the suspect was closer to the investigatory and administrative function than to the prosecutorial. The prosecutors were therefore entitled only to qualified immunity - approximating to the position in English law of a defendant in an action for misfeasance in public office: see Three Rivers District Council v. Bank of England [2000] 3 All ER 1 . The misconduct alleged in Buckley v. Fitzsimmons was described as fabricating evidence. It was claimed that, when three separate laboratory studies failed to make a reliable connection between the bootprint and the suspect's boots, the respondents obtained a positive identification from a person known for her willingness to fabricate unreliable expert testimony.A similar very recent case is Spurlock v. Satterfield 167 F.3d 995 (United States Court of Appeals, Sixth Circuit, 1999). The defendants were a deputy sheriff and other law enforcement officials. The court said at page 1004:The American cases appear to me to provide support for the kind of functional approach which I have outlined earlier. Some support may be gained also, I think, from Osman v. United Kingdom (1998) 29 EHRR 245 . This decision of the European Court of Human Rights seems to be somewhat controversial in England, and its facts are remote from those of the present case. It has some relevance, nevertheless in its rejection of blanket immunities for the police. The United Kingdom courts can undoubtedly take it into account in developing the common law in grey areas; and this will be obligatory when the Human Rights Act 1998 is brought into full force.The respondent seeks to repel any suggestion of blanket immunity by stressing that a claimant who has been a victim of unsuccessful criminal proceedings may be able to sue for malicious prosecution if he can prove an absence of reasonable and probable cause for the prosecution. This argument appears to prove too much. Public policy does not altogether shut out such actions in the interest of protecting honest police prosecutors from the vexation of unfounded claims. The cumulative ingredients of the tort place a series of hurdles in the plaintiffs' way, but pre-trial investigatory work is not sacrosanct. Moreover, although on the moral scale framing a guilty person may be less heinous than framing an innocent one, in both cases the conduct is totally unacceptable. I would not accept that it is a sound rule of public policy to prevent scrutiny of the investigation by a civil action in a case which may fall within one of the two classes while allowing it in a case which may fall within the other.For these reasons I would allow the appeal and make the order proposed by Lord Hutton.

LORD CLYDE

My Lords,In 1993 the appellants faced trial in criminal proceedings. On 28 September 1993 the trial was stayed for an abuse of process. They have claimed damages from the police for conspiracy to injure and the tort of misfeasance in public office. But the claim has been struck out. The issue in the present case is a narrow one: whether an absolute immunity necessarily attaches to police officers who among other things, as is alleged, along with an informer fabricated statements against the appellants and themselves conspired to cause them to be charged with offences which they knew or believed to be false. The immunity claimed is that which is associated with witnesses in judicial proceedings. Immunity has in the past been recognised in respect of the judge, the jurors, the advocates, the witnesses and the parties themselves, at least within the confines of the court proceedings. But since it may be that distinct considerations may apply to some or all of the other four groups it is proper to restrict the present discussion to the immunity of witnesses.The case is not presented as one of malicious prosecution and an argument was presented that was an attempt to side-step the formal requirements of that from of action. But at least in relation to this application for strike-out I am not persuaded that the existence of an arguable case must be determined by the form of action adopted.So far as concerns the principles regarding the immunity of witnesses in connection with judicial proceedings, those principles should be of general application regardless of the particular form of the action. Thus, for example, whether the action is one of defamation or of negligence or, as in the present case, of conspiracy to injure and misfeasance in a public office, the same principles should apply. In Marrinan v. Vibart [1963] 1 Q.B. 528 at p. 535 Sellers L.J. stated:
"Whatever form of action is sought to be derived from what was said or done in the course of judicial proceedings must suffer the same fate of being barred by the rule which protects witnesses in their evidence before the court and in the preparation of the evidence which is to be so given"
. A like view was expressed by Starke J. in the earlier Australian case of Cabassi v. Vila [1940] C.L.R. 130 Starke J. at pp. 140-141.It is temptingly easy to talk of the application of immunities from civil liability in general terms. But since the immunity may cut across the rights of others to a legal remedy and so runs counter to the policy that no wrong should be without a remedy, it should be only allowed with reluctance, and should not readily be extended. It should only be allowed where it is necessary to do so. As McCarthy P. observed in Rees v. Sinclair [1974] 1 N.Z.L.R. 180, at p. 187, "The protection should not be given any wider application than is absolutely necessary in the interests of the administration of justice". Furthermore the idea of a universal immunity attaching to a person in the performance of some particular function requires to be entertained with some caution. As Lord Wilberforce observed in Roy v. Prior [1971] A.C. 470, at p. 480 "Immunities conferred by the law in respect of legal proceedings need always to be checked against a broad view of the public interest". Once a situation has been identified as deserving of immunity it may readily be accepted that the immunity is in its quality absolute. But the process of identification may require to be undertaken with a particular eye to an evaluation of the public interests involved. The quality of an immunity may be absolute, but its application may not be invariable.On the other hand there has to be some degree of certainty about the existence of an immunity for it to be effective. The matter cannot be entirely left as one to be determined on each and every occasion. For the immunity of a witness to be effective it is necessary that the person concerned should know in advance with some certainty that what he or she says will be protected. So even although the matter may depend in any case upon a balancing of interests it ought to be possible to predict with some confidence whether or not an immunity will apply. The law has sought to achieve this by making it clear that the substance of the evidence presented to the court in judicial proceedings will be immune from attack. But a more difficult question arises with regard to the preparation of material and the investigation of a case before the matter comes before the court.Two reasons can be identified for the justification of granting an immunity to witnesses from civil process. They were expressed by Lord Wilberforce in Roy v. Prior (at p. 480) in these terms:
"The reasons why immunity is traditionally (and for this purpose I accept the tradition) conferred upon witnesses in respect of evidence given in court, are in order that they may give their evidence fearlessly and to avoid a multiplicity of actions in which the value or the truth of their evidence would be tried over again"
. So far as the first of these reasons is concerned it may be considered necessary that witnesses should be granted an immunity so as to secure that they may enjoy a freedom to express themselves without fear of any consequences to themselves. In the interests of the judicial process a witness should not be exposed to the risk of having his or her evidence challenged in another process. Those engaged in the judicial process should be under no restraint from saying what has to be said and doing what has to be done for the proper conduct of that process. As Salmon J. observed in Marrinan v. Vibart [1963] 1 Q.B. 234, at p. 237 "This immunity exists for the benefit of the public, since the administration of justice would be greatly impeded if witnesses were to be in fear that any disgruntled and possibly impecunious persons against whom they gave evidence might subsequently involve them in costly litigation".As regards the second reason the law favours a termination to litigation and in various ways endeavours to prevent a re-hearing of a matter which has already passed through the courts. If witnesses were open to a challenge upon the substance of the evidence which they have given in court proceedings, the whole matters to which the evidence related would again be canvassed before another court and in effect the case would be being re-tried. To allow such a proceeding would enable a collateral attack to be made upon the earlier decision and the law is opposed to that kind of repetitive litigation. That principle was recognised in Hunter v. Chief Constable of the West Midlands Police [1982] AC 529 , where an attempt was made to open up in a civil action allegations of assaults by the police prior to the making of confessions which had been disposed of in a voir dire in the course of a criminal trial. That was held to be a collateral attack amounting to an abuse of process. The decision was not in terms exploring the limits of police immunity, but the effect was to provide an immunity.The immunity attaches essentially to what persons who may be called to give evidence say or do before the court. It is an immunity "in respect of evidence given in court" ( Roy v. Prior at p. 480), or, to quote Crompton J. in Henderson v. Broomhead (1859) 4 H. & N. 569 at p. 579, "for words spoken or written in the course of any judicial proceeding". But the immunity would be worthless if it was confined to actual giving of evidence in the court. Thus, as was recognised in Watson v. McEwan , the immunity should cover what is said at the stage when a witness provides a statement of the evidence which he or she is going to give in court, since the immunity relating to what occurs in the trial could otherwise readily be circumvented. Even if a potential witness provides a statement but is not in the event called as a witness, nevertheless the immunity ought to apply. As the Earl of Halsbury L.C. recognised in Watson v. McEwan , the practical answer to the fear of hardship caused by the allowance of an immunity in such a case is that no one would know anything about the statement; it would simply slumber in the solicitor's office. But at the stage of the obtaining of the statement it would not be possible to affirm with certainty whether or not the evidence which it contained was to be used in court and the possibility is enough to support the immunity. The immunity cannot depend upon the chance of the particular person being called as a witness in court.That same consideration of avoiding a circumvention of the immunity should serve to justify its application at the early stages of a litigation or a prosecution where evidence is being collected with a view to court proceedings. It may be that here some delicate questions of fact may arise as to whether or not the material in question was or was not provided with a view to court proceedings. But while the line may be difficult to draw in some cases the distinction in principle is clear. In the case of statements, as Drake J. recognised in Evans at p. 191, the statement must be made "for the purpose of a possible action or prosecution and at a time when a possible action or prosecution is being considered". The test which he formulated (at p. 192) was as follows: "the protection exists only where the statement or conduct is such that it can fairly be said to be part of the process of investigating a crime or a possible crime with a view to a prosecution or possible prosecution in respect of the matter being investigated".It is then not enough that there be an investigation; the investigation must also be with a view to an action or to a prosecution which is already under consideration. Before that stage is reached it would be very difficult to justify the grant of an immunity. Even after that stage, if proceedings are commenced, it does not necessarily follow that all that is said or done in connection with the proceedings will be immune. A helpful distinction has been drawn in the American jurisprudence between matters of advocacy and matters of detection. In Imbler v. Pachtman it was recognised that an absolute immunity was appropriate to the conduct of prosecutors which was intimately associated with the judicial phase of the criminal process. In Buckley v. Fitzsimmons the matter was further developed. In that case it was alleged that the prosecutors had conspired to manufacture false evidence which would link the petitioner's boot with a bootprint of a murderer. The Supreme Court held that immunity was given to the actions of a prosecutor not simply because the actions were performed by a prosecutor. A distinction was drawn between the functions which attracted the immunity and those which did not. As Justice Stevens observed (at p. 2616) "There is a difference between the advocate's role in evaluating evidence and interviewing witnesses as he prepares for trial, on the one hand, and the detective's role in searching for the clues and corroboration that might give him probable cause to recommend that a suspect be arrested, on the other hand". That the police may mount prosecutions or that prosecutors may engage in detective work should not obscure the critical consideration of the function which is being performed. It is to the function that the immunity attaches rather than to the individual who performs it.Some activities which may be described as investigative may thus be covered by the immunity, such as the preparation of reports with a view to these forming part of the evidence to be given in court. In Evans it was held that the collection and analysis of material relevant to an offence or a possible offence under investigation, in that case the recovery and analysis of organs from a deceased child, fell within the scope of the immunity. Thus a statement of claim seeking damages for alleged negligence in allowing the organs to become contaminated in a post mortem examination was struck out. In that case those who had been engaged in the examination and analysis would have been potential witnesses and their evidence would have covered the recovery of the organs and the result of the analysis. In X (Minors) v. Bedfordshire County Council [1995] 2 AC 633 at p. 755G Lord Browne-Wilkinson stated "The psychiatrist must have known that, if such abuse was discovered, proceedings by the local authority for the protection of the child would ensue and that her findings would be the evidence on which those proceedings would be based. It follows in my judgment that such investigations having such an immediate link with possible proceedings in pursuance of a statutory duty cannot be made the subject of subsequent claims". I do not understand that the views expressed in Taylor v. Serious Fraud Office [1999] 2 AC 177 innovated upon this position.But that is not to say that everything said or done by anyone in the investigation or preparation for a judicial process is covered by the immunity. In drawing the line in any particular case it may be necessary to study precisely what was being done and how closely it was linked with the proceedings in court. No immunity should attach to things said or done which would not form part of the evidence to be given in the judicial process. The reason for admitting to the benefit of the immunity things said or done without the walls of the court is to prevent any collateral attack on the witness and circumvent the immunity he or she may enjoy within the court. As Devlin L.J. observed in Lincoln v. Daniels [1962] 1 Q.B. 237, at p. 263, "I have come to the conclusion that the privilege that covers proceedings in a court of justice ought not to be extended to matters outside those proceedings except where it is strictly necessary to do so in order to protect those who are to participate in the proceedings from a flank attack".The protection is granted to a witness in the interest of establishing the truth and to secure that justice may be done. But the witness is not immune from a charge of perjury and that possibility remains as a deterrent against an abuse of his position. Immunity from that would not serve the interests of justice in the case. So also before matters have reached the stage of trial the immunity should not be available to give protection for matter which is designed to defeat the ends of justice rather than to serve them. In Spurlock v. Satterfield Circuit Judge Nathaniel R Jones stated (at p. 1003) "The doctrine of absolute immunity for testimony is a shield to ensure that those individuals intimately involved in the judicial processes are able to carry out their responsibilities without the constant threat of vexatious lawsuits, not a sword allowing them to trample the statutory and constitutional rights of others. By virtue of being a witness, Satterfield is not entitled to absolute immunity in performing any non-testimonial or pre/post-testimonial acts. What plaintiffs, in essence, allege here is the fabrication of probable cause, and contrary to Satterfield's argument, the fabrication of probable cause cannot be immunised by later providing false testimony. Obviously, the two alleged acts, manufacturing the evidence and later presenting that false evidence in the form of testimony, are inextricably linked. Nonetheless, we find that adopting Satterfield's reasoning would lead to the untenable result that officials who fabricate evidence or manufacture probable cause could later shield themselves from liability simply by presenting false testimony regarding the evidence". These observations seem to me to be in point in the present appeal.The only case which counsel for the appellants identified as being contrary to his submission was that of Silcott v. Commissioner of Police for the Metropolis . In my view the approach there taken to the scope of the immunity was too widely expressed. To extend it to cover all conduct that can fairly be said to be part of the investigatory or preparatory process takes it beyond the length of the intimate connection with the court proceedings and the extent which is necessary for the purposes for which it is granted. The planting of a brick or a drug by a police officer so that it can be found by another is not matter which would be expected to form part of the prosecution case in court and there is no necessity for such activity to have the protection of an immunity.If one seeks to apply the reasons which justify an immunity to the present case it seems to me that it would not be proper to strike out the statement of claim. So far as the first purpose of the immunity is concerned, the necessity to secure that witnesses will speak freely and fearlessly, this justification is substantially irrelevant to the present case. What is alleged here is not the telling of lies about facts which had occurred but a deliberate fabrication of facts which had not occurred. What is under attack is not the investigation of possible realities but the preparation of a fiction. In so far as the immunity granted to a witness relates to the substance of the evidence which he or she gives or is to give, the matters of which the appellants complain will almost certainly not be the intended substance of the evidence of those who were engaged in the conspiracy. It cannot be that everything which is said or done in the preparation for judicial proceedings is necessarily immune. Where evidence is fabricated or statements concocted, protection from attack should not be gained by a subsequent presentation of false testimony in court. So far as the second purpose of the immunity is concerned, the desirability of avoiding repeated litigation on the same issue, that too has no relevance to the present case. In the event there was no concluded trial. The proceedings were stayed on the ground of an abuse of process. There is no decision against which a collateral attack can be made.If one turns to consider the other factors which may weigh in deciding whether or not in the circumstances of the present case an immunity should be recognised, it should be noticed that the claimants have been subjected to significant periods in custody, so that in the event they can justifiably complain of some injury. Furthermore the allegations which they present are of machinations by members of a police force of some seriousness. The arranging for the presentation of false evidence to be given by the witness Titley would, if true, constitute a grave abuse of the duties of the police. On the other hand in balancing all the relevant considerations it is right to bear in mind that there may well be grounds for questioning the innocence of the accused. But that cannot affect their entitlement to have access to the courts. The form of action which they have adopted is not a matter for consideration at this stage of the process. Nor are we concerned to explore questions of qualified immunity and malice. The sole question is whether the claim made is so clearly countered by an absolute immunity as to require it to be struck out. In all the circumstances I am not able to return an affirmative answer to that question. I would allow the appeal.

LORD HUTTON

My Lords,The work done by a police officer prior to the commencement of a criminal prosecution may relate to the investigation of a suspected crime, to the questioning of a suspect, to the obtaining of witness statements from prospective witnesses and to the preparation of a witness statement relating to the evidence which he himself may give at the prospective trial. The issue which arises on this appeal concerns the width of the absolute immunity from civil action granted to the police officer in respect of such work.The plaintiffs Head, Lamont and Clark together with David Stanley Docker (now deceased who sues by his personal representative) were indicted on counts alleging conspiracy to import cannabis resin. The plaintiffs Lamont, Rhodes, Clark and Docker were indicted on a count alleging conspiracy to forge American Express Travellers' Cheques. The plaintiffs were charged following an undercover operation conducted by members of No. 4 Regional Crime Squad. The undercover operation involved the use of two undercover police officers and a police informant named Titley. The arrest of the plaintiffs took place between 16 May and 15 July 1992. All the plaintiffs were remanded in custody, and some remained in custody until the trial commenced in August 1993 at Wolverhampton Crown Court before His Honour Judge Gibbs Q.C. The trial was beset with a number of problems, many of which stemmed from the fact that the defence were dissatisfied with the disclosure made by the prosecution. This resulted in the trial judge making orders for disclosure which, regrettably, were not complied with. The fault for this lay with the police and was not due to any default by prosecuting counsel or the Crown Prosecution Service. In addition, the informant Titley, who was to be called as a prosecution witness, proved to be elusive and Detective Constable Ledbrook, a police officer central to the prosecution and to the allegations by the plaintiffs of wrongdoing by the police, was unavailable for attendance at court for medical reasons. On 28 September 1993 the trial judge gave a lengthy and careful ruling in which he held that the police had been significantly at fault in the disclosure process and he directed that the charges be permanently stayed on the ground of abuse of process and the plaintiffs were accordingly discharged.The plaintiffs then commenced an action against the Chief Constable of the West Midlands Police claiming damages for conspiracy to injure and the tort of misfeasance in public office committed by police officers under his direction and control. No claim was brought for malicious prosecution. A statement of claim was issued and served on 24 March 1995 and an amended statement of claim was served on 6 October 1995. The Chief Constable's defence was served on 30 January 1996. It is agreed between the parties that the plaintiffs' allegations can be summarised as follows:The Chief Constable applied to strike out the statement of claim and on 27 September 1996 Maurice Kay J., following the principles stated by the Court of Appeal in Silcott v. Commissioner of Police for the Metropolis [1996] 8 Admin.L.R. 637, struck out the amended statement of claim and dismissed the action.The Court of Appeal dismissed the plaintiffs' appeal in a judgment delivered by Auld L.J. In his judgment the learned Lord Justice considered the immunity given to a witness in court proceedings and cited at page 14 a portion of the judgment of Drake J. in Evans v. London Hospital Medical College [1981] 1 W.L.R. 184, 192 B-D:Auld L.J. then observed that this test had been adopted by the Court of Appeal in Silcott. The immunity which the Court of Appeal held the Chief Constable in this case was entitled to claim on behalf of the officers against whom the allegations of conspiracy and misfeasance were made is an immunity derived from the protection given to a witness in respect of his statements in court. It is therefore necessary to consider the basis of this immunity and the manner in which it has been extended.

The core of the immunity

The rule that a party or witness has immunity in respect of what he says and does in court has been established for centuries. In his submissions to the House Mr. Newman Q.C. cited the judgment of the King's Bench in 1585 in Cutler v. Dixon 4 CoRep 14 b, 76 ER 886 :The rule was succinctly stated as follows by Kelly C.B. in Dawkins v. Lord Rokeby (1873) L.R. 8 Q.B. 255, 264:As Auld L.J. observed in the Court of Appeal at page 8 the plaintiff's claim in that case related to the defendant's oral evidence before a military court of inquiry and also to a written statement containing in substance a repetition of that evidence which the defendant handed in to the court of inquiry immediately after he had given his evidence, and the reference to "anything . . . done" was probably intended to cover the submission of a written statement to a court. The reason for the rule is grounded in public policy: it is to protect a witness who has given evidence in good faith in court from being harassed and vexed by an action for defamation brought against him in respect of the words which he has spoken in the witness box. If this protection were not given persons required to give evidence in other cases might be deterred from doing so by the fear of an action for defamation. And in order to shield honest witnesses from the vexation of having to defend actions against them and to rebut an allegation that they were actuated by malice the courts have decided that it is necessary to grant absolute immunity to witnesses in respect of their words in court even though this means that the shield covers the malicious and dishonest witness as well as the honest one.The extension of the immunity to the proof of the witness's evidence given before trialIn order to enable a case to be prepared for hearing, a witness will before trial almost invariably give a statement of the evidence which he will give in court to the solicitor for the party who proposes to call him. It is apparent that the protection given to a witness in respect of his words in the witness box would be easily outflanked if the immunity given in respect of the words spoken in court did not also cover the words spoken by a witness or a prospective witness in giving his proof of evidence before the commencement of the trial. It was for this reason that in Watson v. M?Ewan [1905] AC 480 this House held that the privilege which protects a witness from an action for defamation in respect of his evidence in the witness box also protects him in respect of a statement made to a solicitor in preparing his proof of evidence for trial, and the Earl of Halsbury L.C. said at page 487:The extension of the immunity to protect witnesses against an action alleging a conspiracy by them to make false statements in courtThe protection given to a witness against an action for defamation in respect of the words which he speaks in court would also be outflanked if the immunity did not operate where an action is brought against two or more witnesses or prospective witnesses alleging a conspiracy by them to make false statements in court. In Marrinan v. Vibart [1963] 1 Q.B. 528, two police officers gave evidence on a criminal prosecution against other persons that the plaintiff had behaved improperly by obstructing a police officer in the execution of his duty and subsequently gave similar evidence at an inquiry before the Benchers of Lincoln's Inn into the conduct of the plaintiff. The plaintiff brought an action against the police officers alleging that they, together with another person, had conspired to injure him by making false and defamatory statements about him. The Court of Appeal held that the immunity given to a witness was not confined to barring an action for defamation but extended to bar an action alleging conspiracy to make false statements in court. The decision of the High Court of Australia in Cabassi v. Vila (1940) 64 C.L.R. 130 is to the same effect, Starke J. stating at page 141:

The extension of the immunity to the preparation of evidence

Whilst it is clear that immunity applies to a statement which is prepared before the trial setting out what the witness intends to say in court, more difficult questions arise as to whether every act which could be regarded as the preparation of evidence comes within the ambit of the immunity.In Evans v. London Hospital Medical College (University of London) and others [1981] 1 W.L.R. 184, the defendants employed by the first defendant carried out a post mortem investigation on the body of the plaintiff's son. The investigation found that certain organs in the body contained concentrations of morphine and this information was given to the police and/or the Director of Public Prosecutions in the form of statements. In consequence the plaintiff was charged with the murder of her son by morphine poisoning. After further investigation by toxicologists on her behalf the prosecution offered no evidence at her trial and she was acquitted. She brought an action claiming damages for negligence against the defendants in which she alleged that the defendants had been negligent ( inter alia ) in allowing the organs removed from her son's body to become contaminated with morphine and in failing to appreciate that the high concentration of morphine revealed by analysis was unlikely to have existed in the child while he was still alive. Drake J. held that the defendants were entitled to absolute immunity and upheld the decision of a master dismissing the action.In Taylor v. Director of the Serious Fraud Office [1999] 2 AC 177 an investigator employed by the Serious Fraud Office was investigating a fraud. In the course of the investigation she made observations about the two plaintiffs which they claimed were defamatory of them, and one of the persons whom she interviewed also made observations to her which the plaintiffs claimed were defamatory. This House held that the absolute immunity from suit which applied to witnesses in respect of statements made in court extended also to out of court statements which could fairly be said to be part of the process of investigating a crime or a possible crime with a view to a prosecution. Lord Hoffmann stated at page 214G:In Taylor the House was considering the test stated by Drake J. in relation to statements and not in relation to conduct and no question arose as to the fabrication of evidence or the planting of evidence; the issue was confined to whether communications between investigators and persons assisting in the inquiry which was conducted with a view to a possible prosecution were covered by absolute immunity.In Silcott v. Commissioner of Police for the Metropolis (1996) 8 AdminLR 633 the plaintiff alleged that two detective officers had fabricated notes purporting to be a contemporaneous record of admissions to a murder which he had made to them in the course of an interview. At the trial of the plaintiff for the murder one of the two police officers was the only witness against the plaintiff. He produced the notes and said in evidence that the other police officer had written the notes and that he had countersigned them. He did not say that the plaintiff himself had signed the notes. It is therefore relevant to observe that the notes themselves did not constitute evidence but that they were used by the police officer in the normal way to refresh his memory in the witness box. In his action the plaintiff pleaded three causes of action:A Master struck out the first two causes of action and his order was upheld by the High Court and the Court of Appeal.In his judgment in the Court of Appeal Simon Brown L.J., after citing the authorities relating to the absolute immunity of a witness in court proceedings and the policy considerations underlying it, stated at p. 640A:Auld L.J. followed and endorsed this reasoning in the present case and stated in his judgment at p. 18:My Lords,there are passages in the authorities which support the reasoning of Simon Brown L.J. and Auld L.J. In Marrinan v. Vibart , although the plaintiff's allegation of conspiracy related to the preparation of statements of the actual evidence which the police officers would give, Sellers L.J. commenced his judgment at page 533 with the statement:And in Evans v. London Hospital Medical College at p. 191H (in a passage cited by Neill L.J. in Silcott at p. 642) Drake J. stated:Furthermore, the authorities make it clear, as both Simon Brown L.J. and Auld L.J. observe, that where the immunity exists it is given to those who deliberately and maliciously make false statements; the immunity is not lost because of the wickedness of the person who claims immunity. There is also logical force in the reasoning of the two Lords Justices. If the immunity is given to a police officer who falsely says in the witness box or in his witness statement that when he pursued the accused from the scene of a robbery he saw him carrying a knife which the accused threw away in the course of the chase and which was not recovered, why should immunity not be given to a police officer who actually plants a knife on a man whom he has caught after a pursuit from the scene of a robbery and which is found on the accused by an honest police officer who subsequently searches him? If an honest police officer who gives truthful evidence in the witness box that he pursued the accused from the scene of a crime is protected by immunity against a vexatious action, why should an honest officer who gives truthful evidence that he found a knife on the accused not be protected by immunity from a vexatious action alleging that he and another police officer conspired to plant the knife?However, notwithstanding the logical force of the view taken by the Court of Appeal in Silcott and in the present case, there are considerations of weight which point to a different conclusion. The predominant requirement of public policy is that those who suffer a wrong should have a right to a remedy, and the case for granting an immunity which restricts that right must be clearly made out. In Mann v. O'Neill (1997) 71 A.L.J.R. 903, 907 the judgment in the High Court of Australia of Brennan C.J., Dawson, Toohey and Gaudron J.J. states:And in Roy v. Prior [1971] A.C. 470, 480F where this House held that a defendant was not entitled to the absolute immunity which he claimed, Lord Wilberforce stated:Moreover there is a danger in extending the immunity given to a witness in court proceedings merely by analogy. In Mann v. O'Neill McHugh J. warned against:And in Lincoln v. Daniels [1962] 1 Q.B. 237, where the defendant claimed absolute immunity in respect of communications sent by him to the Bar Council alleging professional misconduct by the plaintiff, a Queen's Counsel, Devlin L.J. stated at page 263:The underlying rationale for the immunity given to a witness is to ensure that persons who may be witnesses in other cases in the future will not be deterred from giving evidence by fear of being sued for what they say in court. This immunity has been extended, as I have described, to proofs of evidence and to prevent witnesses being sued for conspiracy to give false evidence. But the immunity in essence relates to the giving of evidence. There is, in my opinion, a distinction in principle between what a witness says in court (or what in a proof of evidence a prospective witness states he will say in court) and the fabrication of evidence, such as the forging of a suspect's signature to a confession or a police officer writing down in his notebook words which a suspect did not say or a police officer planting a brick or drugs on a suspect. In practice the distinction may appear to be a fine one, as, for example, between the police officer who does not claim to have made a note, but falsely says in the witness box that the suspect made a verbal confession to him (for which statement the police officer has immunity), and a police officer who, to support the evidence he will give in court, fabricates a note containing an admission which the suspect never made. But I consider that the distinction is a real one and that the first example comes within the proper ambit of the immunity and the other does not.A further consideration is that there are many situations in which false and vexatious accusations may be made against police officers but where the law does not give them absolute immunity when they are sued. These situations were referred to by Sir Richard Scott V. C. in Bennett v. Commissioner of Police for the Metropolis (1997) 10 Admin.L.R. 245, 254, in a passage which it is desirable to set out in full:Therefore there is no general principle that in order to prevent honest police officers from being vexed and harassed by unfounded actions brought by hostile persons whom they have arrested, they should be given absolute immunity in respect of their actions in carrying out their duties, and that in order to protect the many honest police officers from the vexation of rebutting unfounded allegations the immunity should also extend to protect the few dishonest police officers.The policy underlying the immunity which it is contended justifies the extension of the immunity to cover this case is that it is given so that persons who may be involved in future cases will not be deterred from playing their part by fear of a civil action being brought against them. Although police officers who give evidence in court or who prepare statements of the evidence which they will give in court are entitled to the same immunity as other witnesses, I think the reality is that police officers are accustomed to having false accusations made against them by suspects whom they arrest in the course of their duties and are much less likely than other persons to be deterred from doing their duty by a fear that suspects may bring civil actions against them which they know will, save in the most exceptional circumstances, be defended on their behalf by the Commissioner or Chief Constable of their force. Police officers are not deterred from arresting or interrogating a suspect by the knowledge that they will not have absolute immunity from suit if the suspect brings a civil action against them alleging improper force in arresting or interrogating him, and I do not think that police officers will be deterred from noting the answers of suspects in interviews or from searching suspects for weapons or drugs if they know that they will not have absolute immunity in respect of a civil action alleging fabrication of interview notes or the planting of an incriminating object.Mr. Austin-Smith Q.C. for the Chief Constable submitted that the existence of the tort of malicious prosecution (where immunity cannot be claimed) ensures that the proper balance is struck between the public interest in bringing criminals to justice and the protection of those engaged in doing so from harassment by vexatious actions on the one hand and the public interest in providing redress to a citizen against dishonest and malicious actions by police officers in the investigation of crime on the other hand. However, to establish the tort of malicious prosecution the plaintiff must prove absence of reasonable and probable cause for a prosecution, and in my opinion notwithstanding that there is reasonable and probable cause to prosecute, a suspect should be entitled to sue the police for malicious and dishonest conduct in fabricating evidence against him.In Taylor v. Serious Fraud Office , this House approved the test stated by Drake J. in Evans v. London Hospital Medical College (University of London) , although Lord Hoffmann expressed no view on the actual outcome of the case, stating at 215E:On the facts of that case I consider that the decision of Drake J. that the defendants were entitled to absolute immunity was correct. Although the plaintiff alleged that it was done negligently, the organs were removed from the body and examined for the genuine purpose of making a report which would constitute a statement of evidence for a possible prosecution and therefore, in my opinion, came within the ambit of the immunity. But I consider that the position is different where, as alleged by the plaintiffs in this case, steps are taken prior to the making of a statement of evidence, not for the purpose of making a statement of evidence which the maker intends to be an accurate and truthful one, but for the wrongful purpose of fabricating false evidence which would be referred to in an untruthful statement of evidence. In my opinion immunity should not be extended to cover the wrongful fabrication of evidence or of a note which will purport to be used to refresh the memory of the witness in the witness box and which will give the impression to the jury that there is support for the witness's false statement that the suspect made an admission. This view is not in conflict with the principle that immunity (where it exists) is given to a malicious and dishonest witness as well as to an honest witness, and I think that the honest (though negligent) examination of articles to enable a statement of evidence to be made comes within the concept of the preparation of a statement of evidence, whereas the deliberate fabrication of evidence to be referred to in a statement of evidence does not come within that concept. It follows that, in my opinion, the Court of Appeal in Silcott was in error in stating the immunity rule as widely as it did.In the present case I consider, for the reasons which I have given, that the statement of claim should not have been struck out and the action should not have been dismissed. In my opinion the police officers against whom the allegation of conspiracy and misfeasance in public office are made are not entitled to absolute immunity save in so far as an allegation against them is grounded on their statements of the evidence which they would give when the case came to trial. Therefore I would allow the appeal and would order that the action be remitted to proceed in the High Court. I express no opinion on the extent to which the ten allegations summarised by the parties constitute causes of action in tort against the police.

Cited in 2 later judgments