R v Mansfield

In the case of R v Mansfield, the defendants were charged with insider trading offences under the Corporations Act 2001 (Cth). The Crown was required to prove that the information involved in the alleged insider trading was not generally available. The court had to determine whether the definition of 'information' under the Act required the information to be 'truthful' or a 'factual reality', or if it could include suppositions and assumptions. Additionally, the court examined whether the evidence at the close of the Crown's case was sufficient to establish the elements of the conspiracy charges, specifically the non-availability of the information and the existence of the conspiracies.

The court found that the definition of 'information' in the Corporations Act was broad and could include suppositions and assumptions that were insufficiently definite to warrant public disclosure. The court emphasised that 'includes' in the statutory definition had an expansive function, meaning that the definition added to the ordinary meaning of the term rather than confining it. This interpretation aligned with the legislative intent to broaden the scope of what constituted 'information'. The court also held that the evidence presented was sufficient to establish the non-availability of the information and the existence of the conspiracies, as the information in question related to the intentions of individuals concerning the corporation, which were not generally available.

The court determined that the warrants issued for telephone intercepts and access were valid, as they were issued by a nominated member of the Administrative Appeals Tribunal. The evidence obtained through these warrants was deemed admissible. Therefore, the defendants' applications to dismiss the charges on the basis of the insufficiency of the evidence and the invalidity of the warrants were rejected.

The final orders of the court were to deny the defendants' applications to dismiss the charges, thereby allowing the prosecution to proceed with the insider trading and conspiracy charges against the defendants.