33 On application for stay for abuse of process, the trial judge, Cox J, was not satisfied that the accused was not himself implicated in the murder, and therefore held that the accused had not complied with the express condition in the undertaking. Cox J concluded, therefore, that there should be no stay for abuse of process. The dismissal of the stay application was upheld on appeal. Wells J (with whom White J agreed) noted that the trial had been conducted in such a way so as to minimise any prejudice that may have arisen under the aborted deal.
34 In R v Georgiadis [1984] VR 1030, the accused was charged with grievous bodily harm and malicious wounding. In order to induce the accused to give evidence against four others in a trial, the Attorney-General of Victoria signed a document purporting to give Mr Georgiadis immunity. The relevant part of the document stated:
[I] undertake that no criminal proceedings of any kind shall be taken against the said MITSOS GEORGIADIS arising out of or in respect of or on account of his participation in the aforesaid offences which might render him liable to prosecution and of which he gives evidence on the hearing of the abovementioned charges…
35 The trial began without the accused or his legal advisers having the opportunity to read this indemnity and the accused was handed the indemnity immediately prior to his swearing in as a witness. During the course of cross-examination in the trial, the accused made admissions that were the basis of the subsequent charges against him.
36 Although a formal stay was not ordered, the trial judge, Ormiston J, assessed the practical effect of the document on Mr Georgadis. Ormiston J found that both the indemnity and the manner in which the indemnity was given would have induced Mr Georgadis to give evidence that he would not otherwise have given. Ormiston J also considered the undesirable consequences of allowing the Crown to go back on such indemnities.
37 In Delellis v R (1989) 4 CRNZ 601, the accused entered into an agreement with the police that he would tell the police of the whereabouts of cocaine on the condition that they would not lay any charge of importing against him. The police subsequently laid a charge of importing on the basis that the applicant had not been completely honest with them over the way the drug came to New Zealand.
38 In granting a stay for abuse of process, Sinclair J of the High Court of New Zealand held at 604:
If the police arrogate unto themselves the right to enter into "deals" which are not conditional in any way, then they ought not to be allowed to depart from the arrangement and any attempt to do so would be regarded as oppressive and an abuse of process of the court.
39 In Williamson v Trainor [1992] 2 Qd R 572, the accused was appealing against a conviction for assault occasioning bodily harm. When the matter first came for hearing in the Magistrates Court, the prosecution requested an adjournment, due to the fact that two police witnesses were unavailable. The accused objected on the grounds that he had with him a witness that was about to relocate interstate. Having regard to the amount of time that the charge had been pending and the length of time that the matter had been set down for hearing, the magistrate refused the request for an adjournment. The matter was then stood down at the request of the prosecutor. During the break, the prosecutor asked the accused whether he would sign an "indemnity" if the prosecution did not proceed with the charge. The accused agreed to sign the agreement, which stated that the accused would not seek costs and that the Crown would not proceed with the charge. When the hearing resumed, the prosecutor advised that no evidence would be presented in light of the refusal of the court to adjourn the matter. The complaint was accordingly dismissed by the magistrate and no order for costs was sought by the appellant. Several months later the accused was charged, tried and convicted of the offences in question. The accused's witness was not available at the second trial.
40 On appeal, Ambrose J found that it was unconscionable for the prosecutor to make a second complaint instituting fresh proceedings after providing the indemnity and protecting themselves against a probable costs order. Dowsett J also considered that going back on such indemnities was likely to bring the judicial process into disrepute. The Queensland Court of Criminal Appeal ordered a stay for abuse of process on the grounds that the prosecutor's conduct had prejudiced the ability of the accused to procure a fair trial because his witness was unavailable.
41 In R v Croydon Justices; Ex parte Dean [1993] QB 769, the accused assisted police in the course of a murder investigation in which the police provided assurances that they would treat the accused as a witness and he would not be charged with offences relating to the murder. During police interviews, he effectively admitted in uncautioned statements that he had assisted in the destruction of important evidence relating to the murder.
42 Straughton LJ (with whom Buckley J agreed) held that a stay should be granted for abuse of process as there were exceptional circumstances, including the accused's young age, the repeated assurances that he would not be prosecuted, and the fact that the accused had provided repeated assistance for over five weeks.
43 In Peters & Heffernan v R (1995) 83 A Crim R 142, the appellants gave sworn evidence of their own criminal conduct to avoid conviction on a more serious charge. They alleged that their evidence was given as a result of the following Crown undertaking:
The Crown has indicated that if the proposed indictment proceeds to trial, whatever the outcome, it will not prosecute any of accused in respect of any substantive offences, which may have been committed pursuant to either [of] the alleged conspiracy.
44 In the interpretation of this undertaking, Simpson J (with whom Gleeson CJ and McInerney J agreed) rejected the appellants' contention that the words related to any possible offence, no matter how far it was removed from the subject matter of those conspiracies. Her Honour held at 148:
Properly read, the words must be taken to refer to any substantive offence of supplying heroin or some other offence of a like, or related nature. It could not reasonably be taken to include any offence committed during the period of the conspiracies then alleged, no matter how far removed from the subject matter of those conspiracies.