[65]
It must be emphasised that the content of the duty owed by the respondent to the appellant must be determined by reference to the circumstances in which that duty existed. For example, the content of the duty with respect to a fire in readily accessible terrain which is immediately threatening damage to property or persons will be significantly different from the content of the duty with respect to a fire burning in inaccessible terrain surrounded by uninhabited land.
[66]
In addition, the content of the duty does not remain static. That content will change as the circumstances change. The escape of the fire onto the appellant's land having occurred at about 3pm, the critical questions to be determined are the content of the duty in the particular circumstances that existed during the hours leading to 3pm and whether the respondent discharged that duty.
[67]
On 9 September 1995 Mr Baxter and the appellant made observations from the house on Section 1746. Their judgment that, at that time, the fire did not pose an immediate danger to the appellant's land and house was correct. Against that background, Mr Baxter and the appellant both agreed at midday on 10 September that the fire did not pose a danger to the appellant's land and house. Their observations were made from the stables near the southern boundary of Section 1742. Perhaps it would have been preferable for Mr Baxter to have made those observations from Section 1746, but there was no evidence that he would have obtained a better view or impression of the location of the fire by viewing the smoke from Section 1746. Much depends upon the nature of the terrain and growth of trees.
[68]
Mr Baxter and others had been monitoring the course of a fire to the south of Section 1742 and to the north of Cox Peninsula Road. When the danger posed by that fire had passed, Mr Baxter specifically turned his attention to the fire to the north of Section 1746. He took time to attend on the appellant and seek the view of the appellant. In the light of the community practice and expectations, and bearing in mind the experience of the appellant, in arriving at his judgment Mr Baxter was entitled to take into account the views of the appellant.
[69]
In all the circumstances, although the judgment made by Mr Baxter at midday proved to be incorrect, in my opinion the plaintiff failed to establish that the respondent did not take reasonable steps to monitor the fire up to and including the visit by Mr Baxter to Section 1742 at about midday on 10 September 1995.
[70]
As to the content of the respondent's duty after midday on 10 September 1995, attention must be paid to the degree of risk that the fire would move toward and reach the northern boundary of Section 1746 and to the extent of the damage that might occur if the fire was not restrained or extinguished at the boundary. In addition, particular regard must be had to the remoteness of the locality, the community practice and expectations in such situations, the appellant's experience, the duties required of the resources available to the Crown and the limited nature of those resources, namely, the volunteer fire brigade. It is in that total context that this Court must be careful not to impose unreasonable expectations and unreasonable duties which are based more on hindsight and a lack of appreciation of the practicalities and difficulties that exist with fires in remote areas during the dry season than a realistic assessment of the care which a reasonably prudent person would exercise in these circumstances.
[71]
If at midday an assessment had been made that there was in imminent risk of the fire reaching the northern boundary of Section 1746, it could have been said with considerable force that, absent other emergencies, the Crown through the fire brigade was under a duty to place itself on standby at the northern boundary in order to be in a position to back burn into the face of the approaching fire. However, such an assessment was not made. Rather, the conclusion was drawn, and reasonably drawn, that at that time the fire did not pose a significant risk to the appellant's land.
[72]
In some circumstances, the fact that within three hours the fire escaped onto the appellant's land and burnt his house would be sufficient to establish an absence of reasonable care on the part of Mr Baxter. However, in the particular circumstances of this fire, and bearing in mind that the appellant agreed with the judgment made by Mr Baxter, the fact of escape three hours later is not in itself sufficient to establish a lack of reasonable care by Mr Baxter.
[73]
Taking a guide from the weather conditions at the Darwin airport, the temperature had only risen approximately two degrees between 9am and midday. The wind speed was approximately the same or a little less. At the Darwin airport the direction of the wind had moved from north northeast to north.
[74]
Between midday and 3pm, the temperature increased at the Darwin airport by two point five degrees. The wind direction remained constant, but the speed of the wind increased from 13 kilometres per hour to 21 kilometres per hour. There is no evidence as to whether that was a gradual or sudden increase in speed. There is no evidence as to whether the changes at the Darwin airport were reflected by similar or different changes in the area of the fire and Section 1746.
[75]
There is an absence of any evidence to demonstrate that Mr Baxter should have known there was an imminent or approaching danger at midday and ought to have taken immediate precautions. Similarly, there is an absence of evidence that it was unreasonable of Mr Baxter to defer further observations over the next few hours on the basis that the appellant would keep a lookout.
[76]
In those circumstances, in my opinion the respondent's duty did not extend to placing someone on the northern boundary of Section 1746 at midday or in the next three hours before the escape of the fire onto the appellant's land. Counsel for the appellant was unable to suggest any other way in which the respondent could have maintained a closer watch on the fire in that period. The appellant failed to establish that the respondent was in breach of its duty.
[77]
I have reached my view without regard to the agreement between Mr Baxter and the appellant that the appellant would monitor the course of the fire. In my opinion, the fact of that agreement adds weight to my conclusion.
[78]
In principle, there is no reason why the respondent could not use the assistance of any person, including the appellant, in complying with its duty to take reasonable care to prevent the escape of the fire onto Section 1746. This is not a case in which the appellant relied upon the respondent to monitor the course of the fire in the few hours after midday. Nor did the respondent undertake to monitor the fire during that period. The appellant did not suggest that any issue of a non-delegable duty arose. The respondent was not required to use a member of the fire brigade to keep an eye on the fire in the discharge of its duty. The appellant voluntarily undertook that task.
[79]
I emphasise that I am not suggesting that in all circumstances the owner of land on which a fire exists will be able to discharge a duty owed to a neighbour to prevent the escape of the fire onto the neighbour's land by agreeing with the neighbour that the neighbour will keep an eye on the fire and call for assistance if necessary. Each case must be decided according to its particular circumstances.
[80]
For the reasons I have explained, in my opinion the appellant failed to establish that in the particular circumstances that existed at about midday and thereafter on 10 September the respondent failed to exercise the care which a reasonably prudent person would have exercised in the circumstances.