The effect of the authorities concerning the exercise of the Court's discretion as to the form in which security for costs may be provided by a foreign plaintiff with no assets in the jurisdiction (the 'relevant security circumstances') may be summarised as follows.
First, the first principle stated by Priest JA in Yara v Oswal does not require that, in every case involving the relevant security circumstances, the form of the security must comprise a fund or asset in Victoria. There may be countervailing circumstances which point to the justice of the case not requiring security in the form of a fund or asset in Victoria.
Second, countervailing circumstances may include that the plaintiff has substantial assets in a foreign jurisdiction, judgments of this Court can readily be registered in that jurisdiction at a cost which is secured by an asset or fund in Victoria, and execution of the judgment in the foreign jurisdiction does not pose undue difficulties or obstacles. An undertaking by the plaintiff not to seek security for costs in the event that proceedings to enforce a costs judgment are brought in the foreign jurisdiction may also be relevant.
Third, a plaintiff is entitled to put forward security in a form least disadvantageous to it. Where a plaintiff puts forward security in a form other than payment into court or a bank guarantee from an Australian bank, the central inquiry is whether the proposed form of security is adequate to achieve its object as security; namely, to provide a fund or asset against which a successful defendant can readily enforce an order for costs against the plaintiff. The fact that some delay may be involved in accessing that security is, while relevant, not decisive.
Fourth, a plaintiff proposing security bears a 'practical onus' of satisfying the Court that the proposed security will not impose an 'unacceptable disadvantage' on the defendant. Where that onus is satisfied, the Court should ordinarily order security in that form.
Drawing these threads together, in exercising its broad discretion as to the form of security for costs in the relevant security circumstances, the Court will usually apply the following principles:
(1) the plaintiff is entitled to propose security in a form least disadvantageous to it;
(2) the plaintiff bears a 'practical onus' of establishing that the proposed security is adequate and does not impose an 'unacceptable disadvantage' on the defendant;
(3) in order to be adequate, the proposed security must satisfy the protective object of a security for costs order, namely, to provide a fund or asset against which a successful defendant can readily enforce an order for costs against the plaintiff; and
(4) based on these and any other relevant considerations, the Court will determine how justice is best served in the particular circumstances of the case. [6]