Doug lives somewhere near Roxburgh, Central Otago. As far as I know he owns an R22 and does work like cherry drying, frost protection, mustering and alot of pest control work, esp rabbits. They are EVERYWHERE in that area and farmers around there think that the only good rabbit is a dead one.
The New Zealand Forest Service (now Department of Conservation) made all operators involved in deer recovery plaster those letters on the side, when poaching was rife in the industry. I think it was required from the very early 80's until the mid 90's. Of course alot of the dodgy operators just covered it over when they were breaking the law, one operator even stashed a spare set of 'clam shell doors' in the bush near his base. They would land shortly after take off and just swap them before poaching deer on farms and other places they were not meant to be.