Silsoe Sid. Land SAR is controlled by local police. My understanding it was the local Police sergeant on the ground who said to the pilot "you'll have to do it"
RCCNZ is part of Maritime NZ - a Government Department. It is responsible for responsible for coordinating "all major maritime and aviation search and rescue missions within New Zealand’s search and rescue region land-based missions arising from someone activating a distress beacon."
The New Zealand SSR is 30-million sq KMs covering a large part of the Pacific Ocean from the Equator to the Antarctic, and from half way to Australia to half way to Chile.