However in fact there was no evidence to show where the bus was situated when the charge was created. All that is known is that the bus was at all times registered in Queensland and was not in fact in Western Australia on 13th August 1973. If on that date the bus was in some State other than Victoria it has not been shown whether the facts were such that the registration of the debenture was required under the companies legislation of that State. In my opinion, in these circumstances, the appellant has failed to prove that the debenture was validly made under the law of the State where the bus was then situated. I further consider that the appellant bore the onus of making out his claim. The interpleader summons was brought under O. 17 of the Rules of the Supreme Court of Western Australia which, we were told, applies to proceedings in the District Court of that State. Under O. 17, r. 5 it may be ordered (inter alia) that an issue between the claimants be stated and tried and directions may be given as to which of the claimants is to be plaintiff and which defendant and as to the method of trial. In the present case no order appears to have been made under O. 17, r. 5. The learned District Court judge proceeded upon a summons which called upon the parties to "state the nature and particulars of their claims on one 41 seater Passenger Bus seized and held by the Bailiff in this action and maintain and [sic] relinquish them". In accordance with long-standing practice, where an interpleader summons has been taken out by a sheriff who has seized under a writ of execution goods in the possession of the judgment debtor, the claimant is generally made plaintiff and the execution creditor defendant in the issue and the burden of proof is on the claimant to prove his title to the goods or his right to possession of them: see Supreme Court Practice 1973, pp. 246-247, par. 17/5/4; Halsbury's Laws of England, 3rd ed., vol. 22, pp. 479-480. The explanation given for this practice in Chase v. Goble [8] was that the judgment creditor is in possession and would therefore be the party against whom the action of trover, or for money had and received, would have been brought. However, it does not seem correct to say that the execution creditor is in possession - see Richards v. Jenkins [9] ; it is the fact that the judgment debtor was in possession that casts the burden of proof on the claimant: cf. Yorke v. Smith [10] . Similarly, where the interpleader proceedings are brought by a person other than a sheriff or similar officer, the claimant who was not in possession bears the burden of proof and is properly put in the position of plaintiff: see De La Rue v. Hernu, Peron & Stockwell Ltd. [11] . On the same reasoning, where the claimant was in possession of the goods at the time of their seizure by a sheriff, the execution creditor will generally be made plaintiff. There can be no doubt that where an order is made that the claimant be the plaintiff in the issue against the execution creditor, the plaintiff bears the burden of proof. Where, as in the present case, no formal order is made under O. 17, r. 5, the claimant who was not in possession of the goods at the time of seizure still bears the onus of establishing the facts on which his claim depends. This is clear in principle, and it was, I think, recognized in Peake v. Carter [12] . In that case no formal order appears to have been made that the claimant should be plaintiff in the issue but it was nevertheless accepted that the claimant must prove such an interest as would make it wrongful as against him that the goods should be seized to satisfy the debt from the execution debtor [13] . In the present case the bus was in the possession of Trailways, the execution debtor, at the time when it was seized. The execution creditor had no onus of proving anything once it appeared that the vehicle was taken in execution under the writ. On the other hand, the appellant, as a claimant who was never in possession, bore the onus of showing that the bus was subject to a valid charge. To discharge this onus it was not enough to show that the debenture was registered in Victoria when it was not shown and could not be inferred that the vehicle was situated in that State at the time when the charge was created; it was necessary to show that the facts were such that the debenture did not require registration under the law of the State in which the vehicle was situated at the time of the creation of the charge. For these reasons I consider that the appellant failed to make out his claim in the District Court. I would not base my decision on this ground, since it does not appear to have been taken in the courts below, but since the question of the onus of proof is not unimportant in relation to another aspect of the case, I have thought it convenient to consider it. The substantial question argued in the courts below was whether the debenture was void as a security in respect of the bus by reason of the fact that it was not registered in Western Australia, and I now turn to consider that question.