(a) trespass
20The applicants accepted that, absent evidence to the contrary, a person having legitimate business with the owner or occupier of premises will have an implied right to enter and remain on the premises until asked to leave. As expressed in Halliday v Nevill [1984] HCA 80; 155 CLR 1 at 7 (by Gibbs CJ, Mason, Wilson and Deane JJ):
"The most common instance of such an implied licence relates to the means of access, whether path, driveway or both, leading to the entrance of the ordinary suburban dwelling house. If the path or driveway leading to the entrance of such a dwelling is left unobstructed and with entrance gate unlocked and there is no notice or other indication that entry by visitors generally or particularly designated visitors is forbidden or unauthorized, the law will imply a licence in favour of any member of the public to go upon the path or driveway to the entrance of the dwelling for the purpose of lawful communication with, or delivery to, any person in the house. Such an implied or tacit licence can be precluded or at any time revoked by express or implied refusal or withdrawal of it. The occupier will not however be heard to say that while he or she had neither done nor said anything to negate or revoke any such licence, it should not be implied because subjectively he or she had not intended to give it ...."
21That principle was common ground: the question, one of fact, was whether the implication had been negated by one of three courses of conduct undertaken by the applicants. These were, chronologically:
(a) the publication in 2006 in a local newspaper of a letter prepared by the applicants;
(b) correspondence between the applicants and Cowra Shire Council, and
(c) the positioning of a sign at a point where a public roadway commenced to cross their property.
22The principal letter, published in the Cowra Guardian on 28 June 2006, pre-dated the supposed trespass on the applicants' land by more than two years. The correspondence was set out by her Honour at [88]-[90]. Her Honour did not accept that the respondents had read the correspondence, nor did she accept that the letter indicated that the applicants were attempting to give notice that they were withdrawing an implied right of entry onto their property to any Council officer, or other person: [114]-[116]. On what basis those findings should be overturned was not explained.
23The second matter upon which reliance was placed was more closely contemporaneous with the events of October 2008. On 11 August 2008, the applicants wrote to the Council, setting out their views as to the legal entitlement of Council officers to enter property without permission. Her Honour set out the text of the letter at [95]. There does not appear to have been any suggestion that the first respondent was aware of the correspondence or that it alerted him to any requirement to obtain express permission before entering the property: at [106]. The second respondent, as a partner of the firm which had acted on occasion for the Council, was not shown to have any knowledge of the correspondence and denied the proposition that the correspondence itself effected a withdrawal of any implied consent to enter: at [104]-[105]. The trial judge accepted the evidence of the second respondent: at [117]-[118]. There is no reasonable prospect of challenging these factual findings.
24The third and primary basis relied on by the applicants, as conduct withdrawing any implied consent, was the erection of a sign near a cattle grid where the road crossed the southern boundary of the applicants' property. (The wording of the sign identified legal authority, including the decision of the High Court in New South Wales v Ibbett [2006] HCA 57; 229 CLR 638, referring to a report which appeared in mid-2007, the sign presumably being erected at some point thereafter.) The trial judge found that the sign was positioned too far from the cattle grid to be visible at a time when the first respondent was negotiating the grid in the dark, the sign not being illuminated and, even if visible, its contents other than the word "STOP" not being legible. Her Honour therefore concluded that the sign was "ineffective to communicate to the first defendant that implied consent to enter the property was withdrawn": at [113].
25The objective circumstances supported the first respondent's denial of seeing the sign, despite the fact that he was looking for signs in order to locate the applicants' property: at [13]. There was no plausible basis upon which that finding of fact could be challenged. Nor did the applicants contend that any finding of liability in their favour depended on a conclusion that the first respondent should, exercising reasonable care and attention, have seen the sign.
26In the result, the findings of fact were inconsistent with any awareness on the part of the respondents that the authority or licence implied by law, permitting the first respondent to drive up to the applicants' home in order to communicate with them, had been withdrawn.
27The primary basis upon which the applicants sought to challenge the conclusion in respect of liability for trespass to land was a legal argument to the effect that if owners of property take reasonable steps to notify potential visitors that they have no implied permission to come onto the property, then lack of subjective awareness on the part of the visitor is irrelevant.
28This legal proposition was said to derive from a number of cases, including Halliday , cited above and Plenty v Dillon [1991] HCA 5; 171 CLR 635. However, while the passages relied upon all support the principle that an implied permission can be withdrawn by notice, none stated that the mere publication of a notice, unbeknownst to the visitor, was sufficient to render that person a trespasser. For example, Plenty had been argued both in the Full Court of the Supreme Court of South Australia and in the High Court on the footing that there had been an express revocation of any implied consent: at p 638. There was no occasion to discuss how revocation might occur. The only authority referred to by the applicants which was squarely in point was against them. In Wilson v State of New South Wales [2010] NSWCA 333, Hodgson JA, McColl and Young JJA agreeing, set out the principle in respect of a withdrawal of an implied licence to enter premises in the following terms at [51]:
"Thus, in my opinion, the licensee must first have notice that the licence is revoked; and consistently with the general legal position in relation to the giving of notice, that requires a communication to the licensee, which the licensee understands as a revocation of the licence or which a reasonable person in the position of the licensee would understand as a revocation of the licence."
29On the facts found by the trial judge, there was a clear revocation of the implied licence only at about the time the applicants came to understand that the purpose that brought Mr Casey onto their land was to serve them with court process. A question then arose as to whether Mr Casey left within a reasonable time of the revocation being communicated: Cowell v Rosehill Racecourse Co Ltd [1937] HCA 17; 56 CLR 605 at 631 (Dixon J). Whether or not that occurred depended upon a combination of factual findings as to the precise events which occurred on the land on 12 October and an evaluative judgment as to what constituted a reasonable time in all the circumstances. The evidence of the applicants (and in particular of Mr Maynes) as to what occurred when Mr Casey arrived differed in a number of significant respects from Mr Casey's evidence. Her Honour noted the disparity in the accounts and preferred the evidence of Mr Casey: at [179]-[180]. She concluded at [181]:
"I was not therefore satisfied that, although he did not leave the property immediately his authority to be there was withdrawn, he remained on the property for longer than was reasonably practicable."
30The assessment of the timing was critically dependent upon the findings of fact. Even if another view could have been formed as to the immediacy of Mr Casey's withdrawal from the land, unless her Honour's findings with respect to the assault allegation were to be overturned, the quantum of damages would be small and no wider purpose would be served by granting leave to appeal in that respect. Indeed, to do so would be entirely contrary to the purpose underlying the requirement of leave, namely to limit the delay, expense and inconvenience caused by litigation in this Court in cases having limited financial consequences.