Assaf v Skalkos

In the case of Assaf v Skalkos, the plaintiff, Mr Assaf, sued the defendant, Mr Skalkos, for defamation. The dispute involved allegations made by Mr Skalkos that Mr Assaf had engaged in corrupt conduct, which Mr Assaf claimed were false and defamatory. The case was heard in the Supreme Court of New South Wales.

The central legal issue before the court was whether particulars of the justification defence provided to an expert witness were admissible in evidence. The court needed to determine the scope and limits of disclosure in defamation cases, particularly concerning expert evidence and the admissibility of defence particulars.

The court found that the particulars of the justification defence were not admissible as they contained information that was not relevant to the expert's opinion and could potentially prejudice the plaintiff. The court emphasised the importance of ensuring that any information provided to an expert witness is strictly necessary for the purpose of forming an opinion. The court held that the particulars in question went beyond what was necessary for the expert's role and included matters that were not pertinent to the expert's expertise or the defence's justification. As a result, the court excluded the particulars from evidence. The plaintiff's claim for defamation was therefore not prejudiced by the inadmissible particulars.

The court's ruling clarified the boundaries of disclosure in defamation cases involving expert witnesses, ensuring that the evidence presented remains focused and relevant. The court's decision upheld the integrity of the legal process by preventing the introduction of potentially prejudicial information.