(i) The interrogatories must be answered by an officer of the corporation or by any other person duly authorised by it to answer - see Rule 30.01(1)(a)(iii).
The Court has power to direct any other person to answer the interrogatories.
(ii) The person who answers the interrogatories on behalf of the corporation is deemed, for the purposes of answering the interrogatories, to be the party to the litigation.
(iii) The person must answer from his own knowledge, and if he does not have any knowledge, from any belief that he has as to the particular fact or matter.
(iv) If the deponent does not have any knowledge himself, he is obliged to make all reasonable enquiries of the corporation's employees or agents, to obtain relevant knowledge acquired by the person in the course of his employment or agency. This obligation to make enquiries continues even though the person having the relevant knowledge has ceased to be the employee or agent of the corporation.
(v) The deponent may not have any belief because he has no information on which to form a belief or because he has no belief, even though he has relevant information but does not accept that the information is true; but he must have reasonable cause for having no belief that the information is true.
(vi) The deponent must answer from belief, irrespective of the source of the information on which the belief is formed, subject to the exception where the information was obtained in a privileged communication. This obligation changes the law. Formerly, the information had to come from an employee or agent of the corporation who obtained the information in the course of the employment or engagement - see Hawkes v Schubach [1953] VicLawRp 64; (1953) VLR 468, Adams v Dickeson [1974] VicRp 10; (1974) VR 77 at 81, and Smith Kline and French Laboratories Ltd v Intercontinental Pharmaceuticals [1969] HCA 34; (1969) 43 ALJR 308 at 310.
Hence, the deponent may have information which has been obtained from an employee or agent of the corporation or indeed, information that he has got from another source outside his employment but, nevertheless, is obliged to consider that information and form a belief, subject of course to not accepting the information as true.
(vii) The deponent is obliged to answer each interrogatory specifically, by answering the substance of it without evasion, and if he objects to answering an interrogatory, shall briefly state the ground of objection and the facts, if any, upon which it is based.
See Rules 30.05 and 30.06.