Chen v R

In Chen v R, the appellant was convicted of supplying and trafficking a trafficable quantity of MDMA, also known as ecstasy, as well as two counts of supplying a large commercial quantity of the same drug. The matter was heard in the High Court of Australia, which was asked to consider the appeal against conviction and the application for leave to appeal against sentence. The key legal issues in the case were whether the evidence of telephone intercepts and translations could be used to convict the appellant, whether the evidence was properly admitted, and whether there was a miscarriage of justice.

The court considered whether the evidence from the telephone intercepts and translations could be used to convict the appellant. It found that the evidence was properly admitted and that the translations of the intercepted conversations were not capable of innocent construction. The court also noted that the defence counsel did not call independent translators to provide alternative translations, and that the forensic decision to limit cross-examination on the translation of particular words did not result in a miscarriage of justice. The court held that the finding of guilt was open on the evidence presented.

The High Court of Australia also considered the opinion rule and whether the evidence of the police officer's "argot" of drug dealing was properly admitted. It found that the officer's evidence was properly admitted as it was based on specialised knowledge from experience in drug investigations, and that the opinion was framed in terms of "consistency" rather than a conclusion on the ultimate issue. The court also considered whether the evidence of a tendency and whether it was relevant for another purpose under s 95 Evidence Act. It found that appropriate directions were given and that the evidence was properly admitted.

The court further considered whether the evidence of telephone intercept recordings post-dating the offences alleged was properly admitted. It found that the evidence was relevant to the issue of joint criminal enterprise and that the appellant was not involved in the conversations. Finally, the court considered the application for leave to appeal against sentence and found that there was no error in the assessment of the objective seriousness of the offences. The leave was granted but the appeal was ultimately dismissed.