compels one man to pay the debt of another man. But the matter is not as simple as that. The telephone services are the property of the Postmaster-General and no one has any right to use them without his permission. It is plain that if a telephone service is installed for the use of A, and he, without notice to the Department, leaves, and B, without the permission or knowledge of the Depart- ment, enters and uses the service, causes confusion. It is easy for him to say he should not pay A's debt; but who but himself can tell how much is A's debt ? B is responsible for the confusion, and it is easy to see how easily the Department could be defrauded. The regulation simply makes provision that B, if he makes use of the service without a proper transfer, must pay, as his own debt, in return for the service he has taken, whatever amount is due in respect of the line. When he, without authority, assumes possession of the service, he alone knowing when, he assumes at the same time as the price of his assumption the debt attaching to that service. There is nothing in that inconsistent with the Act. Why is it not "necessary or convenient" ? Those words in that collocation mean necessary or convenient from the standpoint of administration. Primarily they signify what the Governor-General may consider necessary or convenient, and no Court can overrule that unless utterly beyond the bounds of reason and SO outside the power. The meaning of " necessary" has been dealt with in many cases in this sense. (See, for instance, Australasian Steam Navigation Co. V. Morse 1 and Local Board of Health of Perth v. Maley 2.)
I see no reason for questioning the validity of the regulation, and therefore think the appeal should be allowed.
HIGGINS J. I am of opinion that the regulation is valid and that the appeal should be allowed.
The question turns ultimately on the effect of sec. 97 of the Post and Telegraph Act 1901-1923. Under that section, the Governor- General " may make regulations, not inconsistent with this Act, prescribing all matters which are necessary or convenient to be prescribed for carrying out or giving effect to this Act" &. What the Governor-General has done is this he has made reg. 21A,
1(1872) L.R. P.C. 222, at p. 230.
2(1904) 1 C.L.R. 702.