In the case of self-incrimination privilege the defendant must establish that the provision of information or the production of documents in the civil case leads to a real and appreciable risk of a criminal prosecution before the privilege can be invoked: Rio Tinto Zinc Corp v Westinghouse Electric Corp [1978] AC 547 at 574; Rank Film Distributors Ltd v Video Information Centre [1982] AC 380 at 392; Sorby v Commonwealth [1983] HCA 10; (1983) 152 CLR 281, 290 and 294. That will not be difficult to show when, as here, the proceeding is aimed at proving that the directors engaged in conduct which would establish, or go a long way toward establishing, that they had also committed criminal acts.
The manner in which penalty privilege is to be claimed depends upon the type of proceeding in which the claim is made. In R v Associated Northern Collieries [1910] HCA 61; (1910) 11 CLR 738, Isaacs J drew attention (at 742) to the 'inherent distinction between a civil action to prevent or redress a civil injury on the one hand, and a civil action to recover a penalty on the other. In the latter case the whole and avowed object of the proceeding is the infliction of the penalty'. See also Mayor of Derby County Borough v Derbyshire County Council [1897] AC 550 at 552; Refrigerated Express Lines (A/Asia) Pty Ltd v Australian Meat and Live-Stock Corporation (1979) 42 FLR 204 at 207. In an action to recover a penalty it is not necessary for the defendant to establish that there is a risk he will be subjected to a penalty by providing information to the plaintiff. The plaintiff is seeking the information for that very purpose. It does not matter that in the proceeding the plaintiff also claims other relief: Birrell v Australian National Airlines Commission (1984) 1 FCR 526 at 530. In civil actions where no claim for a penalty is made the defendant must show that providing the information requested would tend to subject him to a penalty in separate proceedings before he can rely on the privilege.
The circumstances in which penalty privilege may be claimed are not settled. In the past penalty privilege has been raised to prevent a plaintiff obtaining an order for discovery of documents or the administration of interrogatories: see eg Naismith v McGovern [1953] HCA 59; (1953) 90 CLR 336 at 341342. It is clear, however, that the privilege has a wider scope. It will operate, for example, to prevent an order being made for the provision of witness statements (Australian Competition and Consumer Commission v FFE Building Services Ltd [2003] FCAFC 132; (2003) 130 FCR 37) or for the production of documents on subpoena (Caltex Refining [1993] HCA 74; 178 CLR 477, 560). In Refrigerated Express 42 FLR 204, 207208 Deane J said that the privilege operates to prevent a plaintiff obtaining any information that will assist in establishing the defendant's liability to a penalty.
That the rule has a wider application than merely preventing a plaintiff from obtaining discovery or interrogatories reflects the broad object of penalty privilege. In Daniels Corporation [2002] HCA 49; 213 CLR 543, 559 Gleeson CJ, Gaudron, Gummow and Hayne JJ said that penalty privilege 'serves the purpose of ensuring that those who allege criminality or other illegal conduct should prove it'. That is, the plaintiff must prove his case without any assistance from the defendant: Abbco Iceworks [1994] FCA 1279; 52 FCR 96, 129; Rich [2004] HCA 42; 220 CLR 129, 142. So it has been held that although in a civil action a defendant is required to deliver a defence he cannot be compelled to make any admissions in relation to the matters alleged against him. That is, penalty privilege operates to relieve a defendant from the need to deliver a defence that complies with the pleading rules if the rules would override the privilege. To the extent that pleading rules purport to impose such an obligation they must give way to the privilege: Hadgkiss v Construction, Forestry, Mining and Energy Union [2005] FCA 1453; (2005) 146 IR 106 at 111112; A & L Silvestri Pty Ltd v Construction, Forestry, Mining and Energy Union [2005] FCA 1658; (2005) 226 ALR 247 at 251.
There is a potential problem if, as in this case, a defendant wishes to run a positive case. Ordinarily a positive case must be raised in the defence. Whether it must be raised in a defence in a civil action to recover a penalty is by no means clear. The view I favour is that there can be no such requirement as it would be inconsistent with the privilege. On the other hand, if a defendant who wishes to run a positive case is required to plead his case that can be accommodated while maintaining the privilege. What should occur is that the defendant should be entitled to rely on the privilege until the plaintiff's case is concluded. If at that point the defendant decides to run a positive case he can deliver an amended defence that will outline his case. In an exceptional case the judge may grant a short adjournment to allow the plaintiff time to prepare, if he is otherwise taken by surprise. In most cases that will not be necessary. By the time the plaintiff has closed his case the nature of the defence will usually be apparent. That is the experience of those who prosecute criminal cases. The advocate who runs a civil penalty proceeding should be equally adept at dealing with the defendant and his witnesses without knowing in advance every word they are about to say [9] - [13].