One of the most powerful pre-judgment remedies available to a plaintiff is a Mareva injunction freezing the defendant’s assets before trial. The Mareva injunction is a powerful tool for levelling the playing field when dealing with those who, left to their own devices, would dissipate their assets in order to frustrate the claims of their creditors.  Due to its extraordinary effect, the parties to such an injunction can seek to thaw the freezing order to access funds or assets.  As recent case law has shown, the tests to be met differ for defendants and plaintiffs, and a number of factors ought to be considered before a request is made to thaw assets frozen under a Mareva.