15 The question of what principles should govern leave to permit a fresh caveat is discussed in Colbran and Jackson, Caveats (1996) at 481 - 487. The cases in which these issues have arisen have largely concerned s 148 of the Land Transfer Act 1952 of New Zealand. That section is applicable both where a caveat has been removed, on the application of the registered proprietor (Under a provision similar to the procedure in Western Australia prior to s 138B), and where it has lapsed. The cases generally appear to deal with caveats which have either lapsed, or been removed in circumstances where the removal was not contested. Usefully summarised at p 482 are some of the factors which have in that jurisdiction been held to weigh against permitting a second caveat to be lodged. They include delay ensuing since the first caveat lapsed, particularly where there is no reasonable explanation for the delay, and the existence of ample alternative protection for the plaintiff. Factors weighing in favour of the grant of leave will be a very strong prima facie case for the caveator, an oversight which has been explained, and matters of that kind. It appears that those principles, which have much in common with the principles which determine where the balance of convenience lies in relation to applications for interlocutory injunctions, are, in my respectful opinion, appropriate ones to apply in respect of s 138D.