Lawless v The Queen - Duties of a Prosecutor: Disclosure of Material Evidence.

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Lawless v The Queen

Duties of a Prosecutor:

Disclosure of Material Evidence

Crown prosecutors are considered ideally as “ministers of justice” who strive impartially to discover the truth in criminal trials. However, the very nature of an adversarial system contravenes this notion, frequently forcing the prosecutor to do the opposite – aiming for a conviction. The High Court case of Lawless demonstrates this conflict in the issue of prosecution obligation of disclosure, in which it was held by majority that the prosecution had no duty to disclose material that was of relevance to the defence and that a miscarriage of justice had not occurred. Nonetheless, since this decision, Australian common law has evolved somewhat, recognising that notions of natural justice required such disclosure. The purpose of this paper is to discuss and determine what current law has to say on the matter.

Common Law.

Duty to Call Witnesses.

Lane argued that the High Court in Lawless avoided dealing directly with the disclosure issue, but rather, employed witness calling discretion cases to infer that there was no duty on the prosecution to disclose evidence. However, since this decision, the law has changed in its views.

In Whitehorn, Deane J at 664 found that the prosecution had a requirement to call “witnesses whose evidence was relevant to the presentation of the whole picture”, however, in Su, a duty does not exist if the prosecution, on reasonable grounds, concludes that the witness is unreliable.

The leading Australian case on witness calling discretion is Apostilides, in which it was held that the prosecution alone bears the responsibility of deciding whether or not a witness is called. A refusal to call a witness will only be justified if done so in the overriding interest of justice, however, such occasions are rare, and unreliability as a reason will only suffice where there are clear circumstances which establish it. A decision for not calling a witness is only ground for setting aside a conviction if, when viewed from the conduct of the trial as a whole, it constitutes a miscarriage of justice. In Re Van Beelen, it was held that where the Crown is aware of a credible witness who can provide material evidence, he must make the witness or the witness statement available to the defence.

Consequently, even if the witness calling analogy used in Lawless was correct, current prosecution duties to call witnesses, on the facts in Lawless, would provide nonetheless, that there is a duty to call witnesses and hence, an obligation to disclose material to the defence.

Duty of Disclosure.

Discovery and disclosure has been an integral element of civil trials for some time, however, such a reception into criminal trials has been somewhat limited, which is reflected in the lack of clarity on the matter. The existing High Court authority on this issue has been the restrictive Lawless, but the changing composition of the Court has allowed for landmark decisions emphasising the accused’s rights against the State. 

The Prosecution Policy and Guidelines and the Barristers’ Rules both provide obligations for prosecutorial disclosure before and during trial, however, unlike the English equivalent, Australian guidelines are only professional rules and are not strictly enforceable by law. Only through a complaint to the professional body can any disciplinary action be taken against the accused prosecutor, nonetheless, this provides little legal recourse for the accused at trial unless the conduct of the prosecutor, when viewed on the trial as a whole, constitutes a miscarriage of justice.

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Australian cases such as Bradshaw have applied aspects of English common law such as Ward and Brown, however, it is unclear as to what extent the “generous disclosure pronouncements” of English law are reflected in Australian law. Nevertheless, it was held in Bradshaw that “if material was available to the Crown… the accused is entitled to it”, however, that in setting aside a conviction, the ultimate test is whether a miscarriage of justice had occurred. In CPK, the court in applying the English case, Maguire, held that the prosecution had an obligation to disclose material to the defence that discredited prosecution witnesses. This was ...

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