A disclosure order ancillary to a Mareva injunction that requires a defendant to deliver an affidavit of assets directly to the plaintiff, without any mechanism for claiming the privilege against self-incrimination, is inconsistent with that privilege and must be discharged. The correct approach is to mould the order by reference to the nature and source of the power, the privilege, and the factual circumstances. The question whether the Equity Division practice of using s 128 of the Evidence Act fully satisfies the requirements of Reid v Howard was expressly left open.
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