"(1) This Act shall apply to all land, having regard to the provisions of any Act applying to the land, and shall be for the purposes of controlling wild animals generally, and of eradicating wild animals locally where necessary and practicable, as dictated by proper land use. (2) This Act shall be administered, having regard to the general purposes specified in subsection (1) of this section, so as to – (a) Ensure concerted action against the damaging effects of wild animals on vegetation, soils, waters, and wildlife, and (b) Achieve co-ordination of hunting measures, and (c) Provide for the regulation of recreational hunting, commercial hunting, wild animal recovery operation, and the training and employment of staff."
"(1) Every warranted officer holding a warrant for the purposes of this Act may, on production of his warrant of appointment if so required, in the exercise of his duty, - (a) At all times without let or hindrance, - (i) Where he has good reason to believe that an offence is about to be or is being or has been committed, enter upon, pass through, or remain on any land (including any yard and enclosure), shed, barn, hut, tent, and other erection, and any other premises of any description for the purpose of preventing or detecting offences against this Act: (ii) Enter any vehicle, vessel or aircraft that is about to be used or is being used or has been used in contravention of this Act or that he has good reason to believe is about to or is being or has been so used: (iii) Where he has good reason to believe that any offence has been committed against this Act, search any land, or any hut, tent, caravan, bach, or other erection, or any barn, storehouse, or other premises of any description, or any trailer, vehicle, vessel, or aircraft to which paragraph (e) of this subsection applies, or any riding or pack animal, or any other device for transportation or carriage found on any premises or on any water: Provided that nothing in this paragraph shall apply to any dwellinghouse or other permanent residence or to the enclosed garden or curtilage of any dwellinghouse or other permanent residence: * * * * (c) Seize all nets, traps, snares, tranquillising drugs, ammunition, firearms, poisons, vessels, horses, dogs, aircraft, vehicles and devices that are about to be used or are being used or have been used in contravention of this Act, or that he has good reason to believe are about to be so used or are being so used or have been so used: * * * * * (6) Any warranted officer shall have power, on production of his warrant of appointment if so required, to enter at all reasonable times on the land or premises of the holder of any permit or licence or other authority to which any of the provisions of this Act apply, or any other land or premises where he has good reason to believe that an offence against the Act is about to be or is being or has been committed, and inspect any part of the land or premises for the purpose of ascertaining whether the conditions of the permit are being complied with or, as the case may be, whether any offence against this Act has been committed; and where he has good reason to believe that any offence has been committed against this Act, search any land, or any hut, tent, caravan, bach, or other erection, or any barn, storehouse, or other premises of any description, or any trailer, vehicle, vessel, or aircraft to which paragraph (e) of subsection (1) of this section applies, or any riding or pack animal, or any other device for transportation or carriage found on any premises or on any water: Provided that a warranted officer shall not enter any dwellinghouse or the enclosed garden or curtilage of any dwellinghouse, unless he is authorised by a warrant under the hand of a District Court Judge or Justice of the Peace or Community Magistrate, who shall not grant such a warrant unless he is satisfied that the warranted officer has reasonable grounds for requiring entry into the dwellinghouse, garden or curtilage. (7) Any District Court Judge or Justice of the Peace or Community Magistrate who is satisfied on oath that there is probable cause to suspect that any offence against this Act has been or is being committed within any dwellinghouse, garden, or curtilage may, by warrant under his hand, empower a warranted officer to enter therein for the purpose of detecting that offence at such time or times of the day as are mentioned in the warrant, but no such warrant shall continue in force for more than 14 days from the date thereof."
"Everyone has the right to be secure against unreasonable search or seizure, whether of the person, property, or correspondence or otherwise."
"55. It is indisputable that Mr Olde-Olthof believed that ZK-HPS had been involved in a number of instances of hunting of deer contrary to the Act. Furthermore, as the Judge below has held and we have confirmed, he had good reason to believe that was so in relation to the incident at Lake Sumner. Although the other reports about the helicopter could not be substantiated, they too provided some basis for concern about Sugrue's continuing activities. As appeared from his reports, Mr Olde-Olthof was plainly intent on preventing illegal activity by seizing the helicopter and the rifle and was therefore acting for a purpose for which the statutory power was primarily conferred. He was also acting for the authorised purpose of having the helicopter available for forfeiture, if that were ordered. Although with the benefit of hindsight and when the expertise of DOC's regional solicitor, Mr Alty, was brought to bear, forfeiture was not pursued as a realistic possibility, this is not to the point. The evidence against the respondent at the time, the desire to prevent further offending and the ease with which the aircraft could have been disposed of were factors which in combination could have led a reasonable officer to decide in favour of seizure. This is especially so given that the officer would have been aware that an early decision could be made about returning the helicopter, subject to any appropriate conditions. It was not illegitimate for Mr Olde-Olthof in those circumstances to have regard also to showing other WARS operators that DOC would not tolerate unlawful hunting activities and to the maintenance of DOC's credibility with the public and farmers. 56. But it is said that the real reason for the seizure was Mr Olde-Olthof's mistaken belief that the helicopter was needed for forensic purposes. Chisholm J described this belief as 'irrational' which may in all the circumstances have been a little harsh. The respondent's argument was that this rendered the seizure decision unreasonable in administrative law terms and hence, it was said, unlawful. We do not accept this argument. In the first place, as we have found, a seizure can be lawfully made under s 13(1)(c) for forensic purposes. Even if, however, in the particular circumstances a reasonable officer would not have seized the helicopter for such a purpose, it does not follow that the decision made by DOC's head office to allow Mr Olde-Olthof to proceed with a seizure was unreasonable. The focus must be on that decision as a whole, not simply on one facet of the reasoning of Mr Olde-Olthof. Unfortunately, with the passage of time and the death of one of the senior officers it is not possible to say to what (if any) extent DOC's decision was really influenced by Mr Olde-Olthof's mistaken belief, which would seem unlikely to have been shared by head office. The important point, however, is that if overall it was not unreasonable for DOC to decide to seize the helicopter in the particular circumstances, the fact that part of Mr Olde-Olthof's reasoning was mistaken would not vitiate the decision. 57. When giving his evidence, eleven years after the event and long after he had ceased to work for DOC, Mr Olde-Olthof was still inclined to defend what he did by asserting that ZK-HPS was needed as part of a chain of evidence. Chisholm J was quite right to call this his 'primary justification'. But Mr Olde-Olthof's floundering attempts to defend himself on this point should not obscure what is plain from the contemporary documents, namely his reports to his superiors (see paras [28] and [32] above) that he had genuinely believed the helicopter had been used in contravention of the Act and was also motivated by entirely proper purposes, especially the prevention of ongoing unlawful hunting using the helicopter. Having considered the entirety of Mr Olde-Olthof's evidence, with all its inconsistencies, we have not been persuaded that in reality his misguided belief in the need for a chain of evidence so dominated his thinking, and the Department's decision to authorise him to carry out a seizure of the helicopter, that, where objectively good grounds existed for his belief that it had been used in contravention of the Act, the seizure can nevertheless be said to have been unlawful."
"What would have seemed to an objective observer the probable course at the time of the seizure was that consideration for release of the helicopter would follow within a short period – but sufficient to have preventative and deterrent effect on Sugrue – and then would be released in working order with relatively little disruption of Sugrue's legitimate business, which, on the basis of the pilot's logbook, must in any event have seemed far from continuous, even making allowance for seasonal factors. The case against Sugrue would, we think, have also appeared quite strong. Temporary removal of the helicopter and rifle would not have seemed disproportionate."