Where a plaintiff destroys evidence constituting an abuse of process, the court's response must be proportionate: only those causes of action to which the destroyed evidence was material should be dismissed, not discrete causes of action that can proceed independently. The assumed tactical link between causes of action at the time evidence existed does not persist once the relevant cause of action is dismissed. The principles in Johnson J's judgment at [100]-[104] of Clark v State of NSW [2006] NSWSC 673 (approved in Palavi) are qualified by the requirement of proportionality informed by the Civil Procedure Act 2005 (NSW), ss 56-58.
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