Lee v Carlton Crest Hotel (Sydney) Pty Ltd  NSWSC 1392. Davies J.
21 As far as the interrogatories being "necessary" are concerned, Rothman J said in Chong v Nguyen  NSWSC 588:
 The word "necessary" when used in relation to a requirement on the exercise of a power granted to a court should generally and does here mean "reasonably required or legally ancillary" to the achievement of the goal, in this case, of a fair trial. I refer to the joint judgment of Gaudron, Gummow and Callinan JJ in Pelechowski v Registrar, Court of Appeal (1999) 198 CLR 435 which, while determining whether there was a valid basis for contempt proceedings, examined the power of the District Court to issue injunctive relief. They said:
The term 'necessary' in such a setting as this is to be understood in the sense given it by Pollock CB in Attorney-General v Walker (1849) 3 Ex 242, namely as identifying a power to make orders which are reasonably required or legally ancillary to the accomplishment of the specific remedies for enforcement provided in Division 4 of Part 3 of the District Court Act. In this setting, the term 'necessary' does not have the meaning of 'essential'; rather it is to be 'subjected to the touchstone of reasonableness' (State Drug Crime Commission of NSW v Chapman (1987) 12 NSWLR 477 at 452).
22 He noted also at  that the overwhelming authoritative view is that the Court must be satisfied that the order is "necessary in the interests of a fair trial".